1 / 9

Proportions

Proportions. Converting Customary Units Using Proportions. Customary Measures - Capacity. 1 cup (c) = 8 fluid ounces (fl. oz ) 1 pint ( pt ) = 2 cups (c) 1 quart ( qt ) = 2 pints ( pt ) 1 gallon (gal) = 4 quarts ( qt ) Fl. Oz. – Cups – Pints – Quarts – Gallons .

jory
Télécharger la présentation

Proportions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Proportions Converting Customary Units Using Proportions

  2. Customary Measures - Capacity 1 cup (c) = 8 fluid ounces (fl. oz) 1 pint (pt) = 2 cups (c) 1 quart (qt) = 2 pints (pt) 1 gallon (gal) = 4 quarts (qt) Fl. Oz. – Cups – Pints – Quarts – Gallons

  3. Helpful hints to convert with proportions • Same labels go on the same line • 1st fraction contains the conversion key • 2nd fraction contains information from the problem From key From problem 1 pint = xpints 2 cups 15 cups

  4. Guided Practice Conversion Key: 1 quart (qt) = 2 pints (pt) 1. If I have six pints of soda, how many quarts do I have? From key From problem Proportion: = Cross products: 2(x) = 6(1) 1 qt. 2 pt. X qt. 6 pt

  5. Check • CHECK FOR REASONABLENESS Small to large unit = smaller answer

  6. Guided Practice Conversion Key: 1 quart = 2 pints 1 gallon = 4 quarts 2. I have 8 gallons of water. How many pints do I have? Step 1: gallons to quarts Step 2: quarts to pints 1 gal = 4 qt. 8 gal X qt. 1 qt = 2 pt. 32 qt X pt. 4(8) = 1(x) 2(32) = 1(x)

  7. Check • CHECK FOR REASONABLENESS Large to a small unit = large answer

  8. Try on your own • A small box has a capacity of 24 fluid ounces. How many cups does it hold? Conversion Chart: 1 cup = 8 fl. oz. • I need 2 quarts of milk to make rice pudding. If I have 0.75 gallons of milk, do I have enough to make the recipe? Use math to support your answer. Conversion Chart: 1 gallon = 4 quarts

  9. Independent Practice • 1st fraction: conversion chart • 2nd fraction: info in problem • Calculate cross products and solve for variable • Check for reasonableness

More Related