Subtract 28/60 from 8/7
1st number: 1 1/7, 2nd number: 28/60
8/7 - 28/60 is 71/105.
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,
8/7 = 8 × 60/7 × 60 = 480/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
28/60 = 28 × 7/60 × 7 = 196/420 - Subtract the two like fractions:
480/420 - 196/420 = 480 - 196/420 = 284/420 - After reducing the fraction, the answer is 71/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7-28/60 8/7-56/60 8/14-28/60 24/7-28/60 8/7-84/60 8/21-28/60 40/7-28/60 8/35-28/60 56/7-28/60 8/49-28/60