Subtract 84/20 from 42/96
1st number: 42/96, 2nd number: 4 4/20
42/96 - 84/20 is -301/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 20 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 20 × 24 = 480,
84/20 = 84 × 24/20 × 24 = 2016/480 - Subtract the two like fractions:
210/480 - 2016/480 = 210 - 2016/480 = -1806/480 - After reducing the fraction, the answer is -301/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/96-84/20 42/96-84/40 42/96-84/60