Subtract 18/35 from 42/60
42/60 - 18/35 is 13/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
42/60 = 42 × 7/60 × 7 = 294/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
18/35 = 18 × 12/35 × 12 = 216/420 - Subtract the two like fractions:
294/420 - 216/420 = 294 - 216/420 = 78/420 - After reducing the fraction, the answer is 13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60-18/35 42/60-36/35 42/60-18/70 42/60-54/35 42/60-90/35