Subtract 36/24 from 42/70
1st number: 42/70, 2nd number: 1 12/24
42/70 - 36/24 is -9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
42/70 = 42 × 12/70 × 12 = 504/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
36/24 = 36 × 35/24 × 35 = 1260/840 - Subtract the two like fractions:
504/840 - 1260/840 = 504 - 1260/840 = -756/840 - After reducing the fraction, the answer is -9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-36/24 42/70-72/24 42/70-36/48 42/70-36/72