Subtract 7/8 from 40/30
1st number: 1 10/30, 2nd number: 7/8
40/30 - 7/8 is 11/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
40/30 = 40 × 4/30 × 4 = 160/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
7/8 = 7 × 15/8 × 15 = 105/120 - Subtract the two like fractions:
160/120 - 105/120 = 160 - 105/120 = 55/120 - After reducing the fraction, the answer is 11/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-7/8 40/30-14/8 40/60-7/8 40/30-7/16 40/30-21/8 40/90-7/8 40/30-7/24 40/30-35/8 40/30-7/40 40/30-49/8 40/30-7/56