Subtract 42/60 from 8/72
8/72 - 42/60 is -53/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 60 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
8/72 = 8 × 5/72 × 5 = 40/360 - Likewise, for the 2nd fraction, since 60 × 6 = 360,
42/60 = 42 × 6/60 × 6 = 252/360 - Subtract the two like fractions:
40/360 - 252/360 = 40 - 252/360 = -212/360 - After reducing the fraction, the answer is -53/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/72-42/60 8/72-84/60 24/72-42/60 40/72-42/60 56/72-42/60