Subtract 30/7 from 70/60
1st number: 1 10/60, 2nd number: 4 2/7
70/60 - 30/7 is -131/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
70/60 = 70 × 7/60 × 7 = 490/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
30/7 = 30 × 60/7 × 60 = 1800/420 - Subtract the two like fractions:
490/420 - 1800/420 = 490 - 1800/420 = -1310/420 - After reducing the fraction, the answer is -131/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60-60/7 70/60-30/14 70/60-90/7 70/60-30/21 70/60-30/35 70/60-30/49