Subtract 30/72 from 2/15
2/15 - 30/72 is -17/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
2/15 = 2 × 24/15 × 24 = 48/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
30/72 = 30 × 5/72 × 5 = 150/360 - Subtract the two like fractions:
48/360 - 150/360 = 48 - 150/360 = -102/360 - After reducing the fraction, the answer is -17/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/15-30/72 2/15-60/72 2/30-30/72 6/15-30/72 2/15-90/72 2/45-30/72 10/15-30/72 2/75-30/72 14/15-30/72