Subtract 20/24 from 28/7
1st number: 4 0/7, 2nd number: 20/24
28/7 - 20/24 is 19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 7 × 24 = 168,
28/7 = 28 × 24/7 × 24 = 672/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
20/24 = 20 × 7/24 × 7 = 140/168 - Subtract the two like fractions:
672/168 - 140/168 = 672 - 140/168 = 532/168 - After reducing the fraction, the answer is 19/6
- In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7-20/24 28/7-40/24 28/14-20/24 28/7-20/48 84/7-20/24 28/7-60/24 28/21-20/24 28/7-20/72 28/35-20/24 28/49-20/24