Subtract 4/60 from 12/42
12/42 - 4/60 is 23/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
12/42 = 12 × 10/42 × 10 = 120/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
4/60 = 4 × 7/60 × 7 = 28/420 - Subtract the two like fractions:
120/420 - 28/420 = 120 - 28/420 = 92/420 - After reducing the fraction, the answer is 23/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42-4/60 12/42-8/60 12/84-4/60 36/42-4/60 12/42-12/60 60/42-4/60 12/42-20/60 84/42-4/60 12/42-28/60