Subtract 8/56 from 21/60
21/60 - 8/56 is 29/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 60 × 14 = 840,
21/60 = 21 × 14/60 × 14 = 294/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
8/56 = 8 × 15/56 × 15 = 120/840 - Subtract the two like fractions:
294/840 - 120/840 = 294 - 120/840 = 174/840 - After reducing the fraction, the answer is 29/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60-8/56 21/60-16/56 63/60-8/56 21/60-24/56 21/60-40/56