Subtract 5/72 from 90/60
1st number: 1 30/60, 2nd number: 5/72
90/60 - 5/72 is 103/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 60 × 6 = 360,
90/60 = 90 × 6/60 × 6 = 540/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
5/72 = 5 × 5/72 × 5 = 25/360 - Subtract the two like fractions:
540/360 - 25/360 = 540 - 25/360 = 515/360 - After reducing the fraction, the answer is 103/72
- In mixed form: 131/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60-10/72 90/60-15/72 90/60-25/72 90/60-35/72