# What is 7/8 - 3/7?

getcalc.com's **two fractions subtraction calculator** is an online basic math function tool to find what's the equivalent fraction for difference between two fractional numbers with different, unequal or unlike denominators 7/8 and 3/7.

7/8 - 3/7 = 25/56 in fraction form

7/8 - 3/7 = 0.4464 in decimal form

This calculator, formula, step by step calculation and associated information to find the difference between 7/8 and 3/7 may help students, teachers,
parents or professionals to learn, teach, practice or verify such two fractions subtraction calculations efficiently.

## How to Find Equivalent Fraction for 7/8-3/7?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 3/7 from 7/8. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 7/8 minus 3/7.

1. LCM method

2. Cross multiplication method.

__Problem and Workout - LCM Method__

What is 7/8 minus 3/7 as a fraction by subtraction using LCM method?

step 1 Address *formula*, input parameters and values.

Input parameters and values:

7/8 & 3/7

7/8-3/7 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators

The LCM for 8 and 7 is 56.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator

=(7 x 56)/(8 x 56)-(3 x 56)/(7 x 56)

=49/56-24/56

=(49 - 24)/56

step 4 Find difference between numerators and rewrite it in a single form.

=25/56

7/8-3/7=25/56

By using LCM method, **25/56** is the equivalent fraction by subtracting 3/7 from 7/8.

__Problem and Workout - Cross Multiplication Method__

step 1 Address formula and input values.

Input values:

7/8 & 3/7

7/8 - 3/7 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below

= (7 x 7) - (3 x 8)/(8 x 7)

step 3 Simplify and rewrite the fraction

= (49 - 24)/56

7/8-3/7 = 25/56

By using cross multiplication method, **25/56** is the difference between two fractions 7/8 and 3/7.