Subtract 48/7 from 70/42
1st number: 1 28/42, 2nd number: 6 6/7
70/42 - 48/7 is -109/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
70/42 = 70 × 1/42 × 1 = 70/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
48/7 = 48 × 6/7 × 6 = 288/42 - Subtract the two like fractions:
70/42 - 288/42 = 70 - 288/42 = -218/42 - After reducing the fraction, the answer is -109/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-96/7 70/84-48/7 70/42-48/14 70/42-48/21 70/42-48/35 70/42-48/49