Subtract 4/60 from 72/45
1st number: 1 27/45, 2nd number: 4/60
72/45 - 4/60 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
72/45 = 72 × 4/45 × 4 = 288/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
4/60 = 4 × 3/60 × 3 = 12/180 - Subtract the two like fractions:
288/180 - 12/180 = 288 - 12/180 = 276/180 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45-8/60 72/90-4/60 72/45-12/60 72/45-20/60 72/45-28/60