Subtract 30/7 from 63/54
1st number: 1 9/54, 2nd number: 4 2/7
63/54 - 30/7 is -131/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
63/54 = 63 × 7/54 × 7 = 441/378 - Likewise, for the 2nd fraction, since 7 × 54 = 378,
30/7 = 30 × 54/7 × 54 = 1620/378 - Subtract the two like fractions:
441/378 - 1620/378 = 441 - 1620/378 = -1179/378 - After reducing the fraction, the answer is -131/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/54-60/7 63/54-30/14 63/54-90/7 63/54-30/21 63/54-30/35 63/54-30/49