Subtract 42/80 from 98/15
1st number: 6 8/15, 2nd number: 42/80
98/15 - 42/80 is 721/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
98/15 = 98 × 16/15 × 16 = 1568/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Subtract the two like fractions:
1568/240 - 126/240 = 1568 - 126/240 = 1442/240 - After reducing the fraction, the answer is 721/120
- In mixed form: 61/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/15-84/80 98/30-42/80 98/45-42/80 98/75-42/80