Subtract 7/42 from 30/24
1st number: 1 6/24, 2nd number: 7/42
30/24 - 7/42 is 13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 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 42 × 4 = 168,
7/42 = 7 × 4/42 × 4 = 28/168 - Subtract the two like fractions:
210/168 - 28/168 = 210 - 28/168 = 182/168 - After reducing the fraction, the answer is 13/12
- In mixed form: 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/24-7/42 30/24-14/42 30/48-7/42 30/24-7/84 90/24-7/42 30/24-21/42 30/72-7/42 30/24-35/42 30/24-49/42