Subtract 42/60 from 8/70
8/70 - 42/60 is -41/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
8/70 = 8 × 6/70 × 6 = 48/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
42/60 = 42 × 7/60 × 7 = 294/420 - Subtract the two like fractions:
48/420 - 294/420 = 48 - 294/420 = -246/420 - After reducing the fraction, the answer is -41/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70-42/60 8/70-84/60 24/70-42/60 40/70-42/60 56/70-42/60