Subtract 98/40 from 7/12
1st number: 7/12, 2nd number: 2 18/40
7/12 - 98/40 is -28/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
7/12 = 7 × 10/12 × 10 = 70/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
98/40 = 98 × 3/40 × 3 = 294/120 - Subtract the two like fractions:
70/120 - 294/120 = 70 - 294/120 = -224/120 - After reducing the fraction, the answer is -28/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-98/40 7/24-98/40 7/12-98/80 21/12-98/40 7/36-98/40 35/12-98/40 7/60-98/40 49/12-98/40 7/84-98/40