Subtract 60/8 from 1/42
1st number: 1/42, 2nd number: 7 4/8
1/42 - 60/8 is -157/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
1/42 = 1 × 4/42 × 4 = 4/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
60/8 = 60 × 21/8 × 21 = 1260/168 - Subtract the two like fractions:
4/168 - 1260/168 = 4 - 1260/168 = -1256/168 - After reducing the fraction, the answer is -157/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42-60/8 1/84-60/8 1/42-60/16 3/42-60/8 1/42-60/24 5/42-60/8 1/42-60/40 7/42-60/8 1/42-60/56