Subtract 40/21 from 10/60
1st number: 10/60, 2nd number: 1 19/21
10/60 - 40/21 is -73/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
10/60 = 10 × 7/60 × 7 = 70/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
40/21 = 40 × 20/21 × 20 = 800/420 - Subtract the two like fractions:
70/420 - 800/420 = 70 - 800/420 = -730/420 - After reducing the fraction, the answer is -73/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/60-40/21 10/60-80/21 10/60-40/42 30/60-40/21 10/60-40/63 50/60-40/21 70/60-40/21