Answers

Subtract 42/70 from 42/24

1^st number: 1 18/24, 2^nd number: 42/70

42/24 - 42/70 is 23/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 70 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 24 × 35 = 840,
   42/24 = 42 × 35/24 × 35 = 1470/840
3. Likewise, for the 2nd fraction, since 70 × 12 = 840,
   42/70 = 42 × 12/70 × 12 = 504/840
4. Subtract the two like fractions:
   1470/840 - 504/840 = 1470 - 504/840 = 966/840
5. After reducing the fraction, the answer is 23/20
6. In mixed form: 13/20

MathStep (Works offline)

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

Related: ⁸⁴/₂₄-⁴²/₇₀ ⁴²/₂₄-⁸⁴/₇₀ ⁴²/₄₈-⁴²/₇₀ ⁴²/₇₂-⁴²/₇₀

Subtract Fractions Calculator