Subtract 42/27 from 10/5
1st number: 2 0/5, 2nd number: 1 15/27
10/5 - 42/27 is 4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 5 × 27 = 135,
10/5 = 10 × 27/5 × 27 = 270/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
42/27 = 42 × 5/27 × 5 = 210/135 - Subtract the two like fractions:
270/135 - 210/135 = 270 - 210/135 = 60/135 - After reducing the fraction, the answer is 4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/5-42/27 10/5-84/27 10/5-42/54 30/5-42/27 10/15-42/27 10/5-42/81 50/5-42/27 10/25-42/27 70/5-42/27 10/35-42/27