Subtract 72/64 from 60/20
1st number: 3 0/20, 2nd number: 1 8/64
60/20 - 72/64 is 15/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 20 × 16 = 320,
60/20 = 60 × 16/20 × 16 = 960/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
72/64 = 72 × 5/64 × 5 = 360/320 - Subtract the two like fractions:
960/320 - 360/320 = 960 - 360/320 = 600/320 - After reducing the fraction, the answer is 15/8
- In mixed form: 17/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40-72/64