Subtract 1/42 from 70/60
1st number: 1 10/60, 2nd number: 1/42
70/60 - 1/42 is 8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 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 42 × 10 = 420,
1/42 = 1 × 10/42 × 10 = 10/420 - Subtract the two like fractions:
490/420 - 10/420 = 490 - 10/420 = 480/420 - After reducing the fraction, the answer is 8/7
- In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60-2/42 70/60-1/84 70/60-3/42 70/60-5/42 70/60-7/42