Subtract 4/8 from 30/7
1st number: 4 2/7, 2nd number: 4/8
30/7 - 4/8 is 53/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
30/7 = 30 × 8/7 × 8 = 240/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
4/8 = 4 × 7/8 × 7 = 28/56 - Subtract the two like fractions:
240/56 - 28/56 = 240 - 28/56 = 212/56 - After reducing the fraction, the answer is 53/14
- In mixed form: 311/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-4/8 30/14-4/8 30/7-4/16 90/7-4/8 30/7-12/8 30/21-4/8 30/7-4/24 30/7-20/8 30/35-4/8 30/7-4/40 30/7-28/8 30/49-4/8 30/7-4/56