Subtract 10/56 from 42/70
42/70 - 10/56 is 59/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
42/70 = 42 × 4/70 × 4 = 168/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
10/56 = 10 × 5/56 × 5 = 50/280 - Subtract the two like fractions:
168/280 - 50/280 = 168 - 50/280 = 118/280 - After reducing the fraction, the answer is 59/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-10/56 42/70-20/56 42/70-30/56 42/70-50/56 42/70-70/56