Subtract 70/72 from 36/70
36/70 - 70/72 is -577/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
36/70 = 36 × 36/70 × 36 = 1296/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
70/72 = 70 × 35/72 × 35 = 2450/2520 - Subtract the two like fractions:
1296/2520 - 2450/2520 = 1296 - 2450/2520 = -1154/2520 - After reducing the fraction, the answer is -577/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70-70/72