Subtract 18/10 from 72/7
1st number: 10 2/7, 2nd number: 1 8/10
72/7 - 18/10 is 297/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
72/7 = 72 × 10/7 × 10 = 720/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
18/10 = 18 × 7/10 × 7 = 126/70 - Subtract the two like fractions:
720/70 - 126/70 = 720 - 126/70 = 594/70 - After reducing the fraction, the answer is 297/35
- In mixed form: 817/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/7-36/10 72/14-18/10 72/7-18/20 72/7-54/10 72/21-18/10 72/7-18/30 72/7-90/10 72/35-18/10 72/7-18/50 72/49-18/10 72/7-18/70