Subtract 60/30 from 28/56
1st number: 28/56, 2nd number: 2 0/30
28/56 - 60/30 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 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 30 × 28 = 840,
60/30 = 60 × 28/30 × 28 = 1680/840 - Subtract the two like fractions:
420/840 - 1680/840 = 420 - 1680/840 = -1260/840 - After reducing the fraction, the answer is -3/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-60/30 28/56-60/90