Subtract 60/70 from 48/72
48/72 - 60/70 is -4/21.
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,
48/72 = 48 × 35/72 × 35 = 1680/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
60/70 = 60 × 36/70 × 36 = 2160/2520 - Subtract the two like fractions:
1680/2520 - 2160/2520 = 1680 - 2160/2520 = -480/2520 - After reducing the fraction, the answer is -4/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/72-60/70