Subtract 90/56 from 15/5
1st number: 3 0/5, 2nd number: 1 34/56
15/5 - 90/56 is 39/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
15/5 = 15 × 56/5 × 56 = 840/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Subtract the two like fractions:
840/280 - 450/280 = 840 - 450/280 = 390/280 - After reducing the fraction, the answer is 39/28
- In mixed form: 111/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/5-90/56 15/10-90/56 45/5-90/56 75/5-90/56 15/25-90/56 15/35-90/56