Answers

Subtract 7/70 from 90/48

1^st number: 1 42/48, 2^nd number: 7/70

90/48 - 7/70 is 71/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 70 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 48 × 35 = 1680,
   90/48 = 90 × 35/48 × 35 = 3150/1680
3. Likewise, for the 2nd fraction, since 70 × 24 = 1680,
   7/70 = 7 × 24/70 × 24 = 168/1680
4. Subtract the two like fractions:
   3150/1680 - 168/1680 = 3150 - 168/1680 = 2982/1680
5. After reducing the fraction, the answer is 71/40
6. In mixed form: 131/40

MathStep (Works offline)

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

Related: ⁹⁰/₄₈-¹⁴/₇₀ ⁹⁰/₉₆-⁷/₇₀ ⁹⁰/₄₈-²¹/₇₀ ⁹⁰/₄₈-³⁵/₇₀ ⁹⁰/₄₈-⁴⁹/₇₀

Subtract Fractions Calculator