Subtract 54/7 from 18/24
1st number: 18/24, 2nd number: 7 5/7
18/24 - 54/7 is -195/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 7 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Likewise, for the 2nd fraction, since 7 × 24 = 168,
54/7 = 54 × 24/7 × 24 = 1296/168 - Subtract the two like fractions:
126/168 - 1296/168 = 126 - 1296/168 = -1170/168 - After reducing the fraction, the answer is -195/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/24-54/7 18/48-54/7 18/24-54/14 54/24-54/7 18/72-54/7 18/24-54/21 90/24-54/7 18/24-54/35 18/24-54/49