Answers

Subtract 28/5 from 25/42

1^st number: 25/42, 2^nd number: 5 3/5

25/42 - 28/5 is -1051/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 5 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   25/42 = 25 × 5/42 × 5 = 125/210
3. Likewise, for the 2nd fraction, since 5 × 42 = 210,
   28/5 = 28 × 42/5 × 42 = 1176/210
4. Subtract the two like fractions:
   125/210 - 1176/210 = 125 - 1176/210 = -1051/210

MathStep (Works offline)

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

Related: ⁵⁰/₄₂-²⁸/₅ ²⁵/₄₂-⁵⁶/₅ ²⁵/₈₄-²⁸/₅ ²⁵/₄₂-²⁸/₁₀ ⁷⁵/₄₂-²⁸/₅ ²⁵/₄₂-⁸⁴/₅ ²⁵/₄₂-²⁸/₁₅ ²⁵/₄₂-²⁸/₂₅ ²⁵/₄₂-²⁸/₃₅

Subtract Fractions Calculator