Subtract 72/9 from 70/35
1st number: 2 0/35, 2nd number: 8 0/9
70/35 - 72/9 is -6/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
70/35 = 70 × 9/35 × 9 = 630/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
72/9 = 72 × 35/9 × 35 = 2520/315 - Subtract the two like fractions:
630/315 - 2520/315 = 630 - 2520/315 = -1890/315 - After reducing the fraction, the answer is -6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/35-72/18 70/35-72/27 70/35-72/45 70/35-72/63