Subtract 70/9 from 70/4
1st number: 17 2/4, 2nd number: 7 7/9
70/4 - 70/9 is 175/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
70/4 = 70 × 9/4 × 9 = 630/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
70/9 = 70 × 4/9 × 4 = 280/36 - Subtract the two like fractions:
630/36 - 280/36 = 630 - 280/36 = 350/36 - After reducing the fraction, the answer is 175/18
- In mixed form: 913/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8-70/9 70/4-70/18 70/12-70/9 70/4-70/27 70/20-70/9 70/4-70/45 70/28-70/9 70/4-70/63