Answers

Subtract 70/45 from 49/84

1^st number: 49/84, 2^nd number: 1 25/45

49/84 - 70/45 is -35/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   49/84 = 49 × 15/84 × 15 = 735/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   70/45 = 70 × 28/45 × 28 = 1960/1260
4. Subtract the two like fractions:
   735/1260 - 1960/1260 = 735 - 1960/1260 = -1225/1260
5. After reducing the fraction, the answer is -35/36

MathStep (Works offline)

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

Related: ⁹⁸/₈₄-⁷⁰/₄₅ ⁴⁹/₈₄-⁷⁰/₉₀

Subtract Fractions Calculator