Subtract 15/60 from 28/56
28/56 - 15/60 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 60 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840 - Likewise, for the 2nd fraction, since 60 × 14 = 840,
15/60 = 15 × 14/60 × 14 = 210/840 - Subtract the two like fractions:
420/840 - 210/840 = 420 - 210/840 = 210/840 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/56-30/60 84/56-15/60 28/56-45/60 28/56-75/60