Subtract 98/40 from 12/15
1st number: 12/15, 2nd number: 2 18/40
12/15 - 98/40 is -33/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
12/15 = 12 × 8/15 × 8 = 96/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
98/40 = 98 × 3/40 × 3 = 294/120 - Subtract the two like fractions:
96/120 - 294/120 = 96 - 294/120 = -198/120 - After reducing the fraction, the answer is -33/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15-98/40 12/30-98/40 12/15-98/80 36/15-98/40 12/45-98/40 60/15-98/40 12/75-98/40 84/15-98/40