Subtract 9/72 from 70/10
1st number: 7 0/10, 2nd number: 9/72
70/10 - 9/72 is 55/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
70/10 = 70 × 36/10 × 36 = 2520/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Subtract the two like fractions:
2520/360 - 45/360 = 2520 - 45/360 = 2475/360 - After reducing the fraction, the answer is 55/8
- In mixed form: 67/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10-18/72 70/20-9/72 70/10-27/72 70/30-9/72 70/10-45/72 70/50-9/72 70/10-63/72