Subtract 10/60 from 70/21
1st number: 3 7/21, 2nd number: 10/60
70/21 - 10/60 is 19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
70/21 = 70 × 20/21 × 20 = 1400/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
10/60 = 10 × 7/60 × 7 = 70/420 - Subtract the two like fractions:
1400/420 - 70/420 = 1400 - 70/420 = 1330/420 - After reducing the fraction, the answer is 19/6
- In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21-20/60 70/42-10/60 70/21-30/60 70/63-10/60 70/21-50/60 70/21-70/60