Subtract 42/24 from 7/35
1st number: 7/35, 2nd number: 1 18/24
7/35 - 42/24 is -31/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 35 × 24 = 840,
7/35 = 7 × 24/35 × 24 = 168/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
42/24 = 42 × 35/24 × 35 = 1470/840 - Subtract the two like fractions:
168/840 - 1470/840 = 168 - 1470/840 = -1302/840 - After reducing the fraction, the answer is -31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/35-42/24 7/35-84/24 7/70-42/24 7/35-42/48 21/35-42/24 7/35-42/72 49/35-42/24