Subtract 3/7 from 70/4
1st number: 17 2/4, 2nd number: 3/7
70/4 - 3/7 is 239/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
70/4 = 70 × 7/4 × 7 = 490/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
3/7 = 3 × 4/7 × 4 = 12/28 - Subtract the two like fractions:
490/28 - 12/28 = 490 - 12/28 = 478/28 - After reducing the fraction, the answer is 239/14
- In mixed form: 171/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/4-6/7 70/8-3/7 70/4-3/14 70/4-9/7 70/12-3/7 70/4-3/21 70/4-15/7 70/20-3/7 70/4-3/35 70/4-21/7 70/28-3/7 70/4-3/49