Subtract 45/24 from 30/28
1st number: 1 2/28, 2nd number: 1 21/24
30/28 - 45/24 is -45/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 28 × 6 = 168,
30/28 = 30 × 6/28 × 6 = 180/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
45/24 = 45 × 7/24 × 7 = 315/168 - Subtract the two like fractions:
180/168 - 315/168 = 180 - 315/168 = -135/168 - After reducing the fraction, the answer is -45/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-45/24 30/28-90/24 30/56-45/24 30/28-45/48 90/28-45/24 30/84-45/24 30/28-45/72