Subtract 1/7 from 42/28
1st number: 1 14/28, 2nd number: 1/7
42/28 - 1/7 is 19/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
42/28 = 42 × 1/28 × 1 = 42/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
1/7 = 1 × 4/7 × 4 = 4/28 - Subtract the two like fractions:
42/28 - 4/28 = 42 - 4/28 = 38/28 - After reducing the fraction, the answer is 19/14
- In mixed form: 15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-1/7 42/28-2/7 42/56-1/7 42/28-1/14 42/28-3/7 42/84-1/7 42/28-1/21 42/28-5/7 42/28-1/35 42/28-1/49