Subtract 56/7 from 30/4
1st number: 7 2/4, 2nd number: 8 0/7
30/4 - 56/7 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
30/4 = 30 × 7/4 × 7 = 210/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
56/7 = 56 × 4/7 × 4 = 224/28 - Subtract the two like fractions:
210/28 - 224/28 = 210 - 224/28 = -14/28 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4-56/7 30/8-56/7 30/4-56/14 90/4-56/7 30/12-56/7 30/4-56/21 30/20-56/7 30/4-56/35 30/28-56/7 30/4-56/49