Subtract 90/70 from 1/36
1st number: 1/36, 2nd number: 1 20/70
1/36 - 90/70 is -317/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
1/36 = 1 × 35/36 × 35 = 35/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
90/70 = 90 × 18/70 × 18 = 1620/1260 - Subtract the two like fractions:
35/1260 - 1620/1260 = 35 - 1620/1260 = -1585/1260 - After reducing the fraction, the answer is -317/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/36-90/70 1/72-90/70 3/36-90/70 5/36-90/70 7/36-90/70