Subtract 84/20 from 28/24
1st number: 1 4/24, 2nd number: 4 4/20
28/24 - 84/20 is -91/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
28/24 = 28 × 5/24 × 5 = 140/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
84/20 = 84 × 6/20 × 6 = 504/120 - Subtract the two like fractions:
140/120 - 504/120 = 140 - 504/120 = -364/120 - After reducing the fraction, the answer is -91/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/24-84/20 28/48-84/20 28/24-84/40 84/24-84/20 28/72-84/20 28/24-84/60