Subtract 14/10 from 70/42
1st number: 1 28/42, 2nd number: 1 4/10
70/42 - 14/10 is 4/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
14/10 = 14 × 21/10 × 21 = 294/210 - Subtract the two like fractions:
350/210 - 294/210 = 350 - 294/210 = 56/210 - After reducing the fraction, the answer is 4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-28/10 70/84-14/10 70/42-14/20 70/42-42/10 70/42-14/30 70/42-70/10 70/42-14/50 70/42-98/10 70/42-14/70