Answers

Subtract 90/45 from 35/49

1^st number: 35/49, 2^nd number: 2 0/45

35/49 - 90/45 is -9/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 45 is 2205
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2205
2. For the 1st fraction, since 49 × 45 = 2205,
   35/49 = 35 × 45/49 × 45 = 1575/2205
3. Likewise, for the 2nd fraction, since 45 × 49 = 2205,
   90/45 = 90 × 49/45 × 49 = 4410/2205
4. Subtract the two like fractions:
   1575/2205 - 4410/2205 = 1575 - 4410/2205 = -2835/2205
5. After reducing the fraction, the answer is -9/7

MathStep (Works offline)

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

Related: ⁷⁰/₄₉-⁹⁰/₄₅ ³⁵/₉₈-⁹⁰/₄₅

Subtract Fractions Calculator