Subtract 9/90 from 70/56
1st number: 1 14/56, 2nd number: 9/90
70/56 - 9/90 is 23/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
70/56 = 70 × 45/56 × 45 = 3150/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
9/90 = 9 × 28/90 × 28 = 252/2520 - Subtract the two like fractions:
3150/2520 - 252/2520 = 3150 - 252/2520 = 2898/2520 - After reducing the fraction, the answer is 23/20
- In mixed form: 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/56-18/90 70/56-27/90 70/56-45/90 70/56-63/90