Answers

Subtract 25/35 from 42/54

42/54 - 25/35 is 4/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 35 is 1890
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1890
2. For the 1st fraction, since 54 × 35 = 1890,
   42/54 = 42 × 35/54 × 35 = 1470/1890
3. Likewise, for the 2nd fraction, since 35 × 54 = 1890,
   25/35 = 25 × 54/35 × 54 = 1350/1890
4. Subtract the two like fractions:
   1470/1890 - 1350/1890 = 1470 - 1350/1890 = 120/1890
5. After reducing the fraction, the answer is 4/63

MathStep (Works offline)

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

Related: ⁸⁴/₅₄-²⁵/₃₅ ⁴²/₅₄-⁵⁰/₃₅ ⁴²/₅₄-²⁵/₇₀ ⁴²/₅₄-⁷⁵/₃₅

Subtract Fractions Calculator