Subtract 60/7 from 45/72
1st number: 45/72, 2nd number: 8 4/7
45/72 - 60/7 is -445/56.
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,
45/72 = 45 × 7/72 × 7 = 315/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
60/7 = 60 × 72/7 × 72 = 4320/504 - Subtract the two like fractions:
315/504 - 4320/504 = 315 - 4320/504 = -4005/504 - After reducing the fraction, the answer is -445/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72-60/7 45/72-60/14 45/72-60/21 45/72-60/35 45/72-60/49