Subtract 72/56 from 5/30
1st number: 5/30, 2nd number: 1 16/56
5/30 - 72/56 is -47/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
5/30 = 5 × 28/30 × 28 = 140/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
72/56 = 72 × 15/56 × 15 = 1080/840 - Subtract the two like fractions:
140/840 - 1080/840 = 140 - 1080/840 = -940/840 - After reducing the fraction, the answer is -47/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30-72/56 5/60-72/56 15/30-72/56 5/90-72/56 25/30-72/56 35/30-72/56