Subtract 18/24 from 12/7
1st number: 1 5/7, 2nd number: 18/24
12/7 - 18/24 is 27/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 7 × 24 = 168,
12/7 = 12 × 24/7 × 24 = 288/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Subtract the two like fractions:
288/168 - 126/168 = 288 - 126/168 = 162/168 - After reducing the fraction, the answer is 27/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7-18/24 12/7-36/24 12/14-18/24 12/7-18/48 36/7-18/24 12/7-54/24 12/21-18/24 12/7-18/72 60/7-18/24 12/7-90/24 12/35-18/24 84/7-18/24 12/49-18/24