Subtract 30/12 from 7/8
1st number: 7/8, 2nd number: 2 6/12
7/8 - 30/12 is -13/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
7/8 = 7 × 3/8 × 3 = 21/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
30/12 = 30 × 2/12 × 2 = 60/24 - Subtract the two like fractions:
21/24 - 60/24 = 21 - 60/24 = -39/24 - After reducing the fraction, the answer is -13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8-30/12 7/8-60/12 7/16-30/12 7/8-30/24 21/8-30/12 7/8-90/12 7/24-30/12 7/8-30/36 35/8-30/12 7/40-30/12 7/8-30/60 49/8-30/12 7/56-30/12 7/8-30/84