Subtract 42/60 from 12/7
1st number: 1 5/7, 2nd number: 42/60
12/7 - 42/60 is 71/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 7 × 60 = 420,
12/7 = 12 × 60/7 × 60 = 720/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
42/60 = 42 × 7/60 × 7 = 294/420 - Subtract the two like fractions:
720/420 - 294/420 = 720 - 294/420 = 426/420 - After reducing the fraction, the answer is 71/70
- In mixed form: 11/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7-42/60 12/7-84/60 12/14-42/60 36/7-42/60 12/21-42/60 60/7-42/60 12/35-42/60 84/7-42/60 12/49-42/60