Subtract 98/80 from 84/75
1st number: 1 9/75, 2nd number: 1 18/80
84/75 - 98/80 is -21/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
84/75 = 84 × 16/75 × 16 = 1344/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
98/80 = 98 × 15/80 × 15 = 1470/1200 - Subtract the two like fractions:
1344/1200 - 1470/1200 = 1344 - 1470/1200 = -126/1200 - After reducing the fraction, the answer is -21/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: