Subtract 72/6 from 42/25
1st number: 1 17/25, 2nd number: 12 0/6
42/25 - 72/6 is -258/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 6 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
42/25 = 42 × 6/25 × 6 = 252/150 - Likewise, for the 2nd fraction, since 6 × 25 = 150,
72/6 = 72 × 25/6 × 25 = 1800/150 - Subtract the two like fractions:
252/150 - 1800/150 = 252 - 1800/150 = -1548/150 - After reducing the fraction, the answer is -258/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25-72/6 42/50-72/6 42/25-72/12 42/75-72/6 42/25-72/18 42/25-72/30 42/25-72/42