Answers

Subtract 21/75 from 70/36

1^st number: 1 34/36, 2^nd number: 21/75

70/36 - 21/75 is 749/450.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 75 is 900
   
   Next, find the equivalent fraction of both fractional numbers with denominator 900
2. For the 1st fraction, since 36 × 25 = 900,
   70/36 = 70 × 25/36 × 25 = 1750/900
3. Likewise, for the 2nd fraction, since 75 × 12 = 900,
   21/75 = 21 × 12/75 × 12 = 252/900
4. Subtract the two like fractions:
   1750/900 - 252/900 = 1750 - 252/900 = 1498/900
5. After reducing the fraction, the answer is 749/450
6. In mixed form: 1299/450

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁷⁰/₃₆-⁴²/₇₅ ⁷⁰/₇₂-²¹/₇₅ ⁷⁰/₃₆-⁶³/₇₅

Subtract Fractions Calculator