Subtract 10/36 from 90/70
1st number: 1 20/70, 2nd number: 10/36
90/70 - 10/36 is 127/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
90/70 = 90 × 18/70 × 18 = 1620/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
10/36 = 10 × 35/36 × 35 = 350/1260 - Subtract the two like fractions:
1620/1260 - 350/1260 = 1620 - 350/1260 = 1270/1260 - After reducing the fraction, the answer is 127/126
- In mixed form: 11/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70-20/36 90/70-10/72 90/70-30/36 90/70-50/36 90/70-70/36