Subtract 2/28 from 42/10
1st number: 4 2/10, 2nd number: 2/28
42/10 - 2/28 is 289/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
42/10 = 42 × 14/10 × 14 = 588/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
2/28 = 2 × 5/28 × 5 = 10/140 - Subtract the two like fractions:
588/140 - 10/140 = 588 - 10/140 = 578/140 - After reducing the fraction, the answer is 289/70
- In mixed form: 49/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-2/28 42/10-4/28 42/20-2/28 42/10-2/56 42/10-6/28 42/30-2/28 42/10-2/84 42/10-10/28 42/50-2/28 42/10-14/28 42/70-2/28