Subtract 7/72 from 32/70
32/70 - 7/72 is 907/2520.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
32/70 = 32 × 36/70 × 36 = 1152/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
7/72 = 7 × 35/72 × 35 = 245/2520 - Subtract the two like fractions:
1152/2520 - 245/2520 = 1152 - 245/2520 = 907/2520
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/70-7/72 32/70-14/72 96/70-7/72 32/70-21/72 32/70-35/72 32/70-49/72