Subtract 15/84 from 98/40
1st number: 2 18/40, 2nd number: 15/84
98/40 - 15/84 is 159/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
98/40 = 98 × 21/40 × 21 = 2058/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
15/84 = 15 × 10/84 × 10 = 150/840 - Subtract the two like fractions:
2058/840 - 150/840 = 2058 - 150/840 = 1908/840 - After reducing the fraction, the answer is 159/70
- In mixed form: 219/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40-30/84 98/80-15/84 98/40-45/84 98/40-75/84