Subtract 18/7 from 30/24
1st number: 1 6/24, 2nd number: 2 4/7
30/24 - 18/7 is -37/28.
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,
30/24 = 30 × 7/24 × 7 = 210/168 - Likewise, for the 2nd fraction, since 7 × 24 = 168,
18/7 = 18 × 24/7 × 24 = 432/168 - Subtract the two like fractions:
210/168 - 432/168 = 210 - 432/168 = -222/168 - After reducing the fraction, the answer is -37/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/24-18/7 30/24-36/7 30/48-18/7 30/24-18/14 90/24-18/7 30/24-54/7 30/72-18/7 30/24-18/21 30/24-90/7 30/24-18/35 30/24-18/49