Subtract 42/7 from 50/70
1st number: 50/70, 2nd number: 6 0/7
50/70 - 42/7 is -37/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
50/70 = 50 × 1/70 × 1 = 50/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
42/7 = 42 × 10/7 × 10 = 420/70 - Subtract the two like fractions:
50/70 - 420/70 = 50 - 420/70 = -370/70 - After reducing the fraction, the answer is -37/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70-84/7 50/70-42/14 50/70-42/21 50/70-42/35 50/70-42/49