Subtract 72/5 from 42/14
1st number: 3 0/14, 2nd number: 14 2/5
42/14 - 72/5 is -57/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
42/14 = 42 × 5/14 × 5 = 210/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
72/5 = 72 × 14/5 × 14 = 1008/70 - Subtract the two like fractions:
210/70 - 1008/70 = 210 - 1008/70 = -798/70 - After reducing the fraction, the answer is -57/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14-72/5 42/28-72/5 42/14-72/10 42/14-72/15 42/70-72/5 42/14-72/25 42/98-72/5 42/14-72/35