Subtract 70/72 from 7/10
7/10 - 70/72 is -49/180.
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,
7/10 = 7 × 36/10 × 36 = 252/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
70/72 = 70 × 5/72 × 5 = 350/360 - Subtract the two like fractions:
252/360 - 350/360 = 252 - 350/360 = -98/360 - After reducing the fraction, the answer is -49/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10-70/72 7/20-70/72 21/10-70/72 7/30-70/72 35/10-70/72 7/50-70/72 49/10-70/72 7/70-70/72