Subtract 84/80 from 42/96
1st number: 42/96, 2nd number: 1 4/80
42/96 - 84/80 is -49/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 80 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 96 × 5 = 480,
42/96 = 42 × 5/96 × 5 = 210/480 - Likewise, for the 2nd fraction, since 80 × 6 = 480,
84/80 = 84 × 6/80 × 6 = 504/480 - Subtract the two like fractions:
210/480 - 504/480 = 210 - 504/480 = -294/480 - After reducing the fraction, the answer is -49/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/96-84/80