Subtract 70/36 from 63/70
1st number: 63/70, 2nd number: 1 34/36
63/70 - 70/36 is -47/45.
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,
63/70 = 63 × 18/70 × 18 = 1134/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
70/36 = 70 × 35/36 × 35 = 2450/1260 - Subtract the two like fractions:
1134/1260 - 2450/1260 = 1134 - 2450/1260 = -1316/1260 - After reducing the fraction, the answer is -47/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70-70/72