Subtract 60/7 from 70/72
1st number: 70/72, 2nd number: 8 4/7
70/72 - 60/7 is -1915/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
60/7 = 60 × 72/7 × 72 = 4320/504 - Subtract the two like fractions:
490/504 - 4320/504 = 490 - 4320/504 = -3830/504 - After reducing the fraction, the answer is -1915/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72-60/14 70/72-60/21 70/72-60/35 70/72-60/49