Subtract 30/56 from 15/60
15/60 - 30/56 is -2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 60 × 14 = 840,
15/60 = 15 × 14/60 × 14 = 210/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
30/56 = 30 × 15/56 × 15 = 450/840 - Subtract the two like fractions:
210/840 - 450/840 = 210 - 450/840 = -240/840 - After reducing the fraction, the answer is -2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60-30/56 15/60-60/56 45/60-30/56 15/60-90/56 75/60-30/56