Subtract 1/90 from 70/56
1st number: 1 14/56, 2nd number: 1/90
70/56 - 1/90 is 223/180.
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,
1/90 = 1 × 28/90 × 28 = 28/2520 - Subtract the two like fractions:
3150/2520 - 28/2520 = 3150 - 28/2520 = 3122/2520 - After reducing the fraction, the answer is 223/180
- In mixed form: 143/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/56-2/90 70/56-3/90 70/56-5/90 70/56-7/90