Subtract 63/70 from 6/72
6/72 - 63/70 is -49/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
6/72 = 6 × 35/72 × 35 = 210/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
63/70 = 63 × 36/70 × 36 = 2268/2520 - Subtract the two like fractions:
210/2520 - 2268/2520 = 210 - 2268/2520 = -2058/2520 - After reducing the fraction, the answer is -49/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/72-63/70 18/72-63/70 30/72-63/70 42/72-63/70