Subtract 84/8 from 40/28
1st number: 1 12/28, 2nd number: 10 4/8
40/28 - 84/8 is -127/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
40/28 = 40 × 2/28 × 2 = 80/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
84/8 = 84 × 7/8 × 7 = 588/56 - Subtract the two like fractions:
80/56 - 588/56 = 80 - 588/56 = -508/56 - After reducing the fraction, the answer is -127/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-84/8 40/56-84/8 40/28-84/16 40/84-84/8 40/28-84/24 40/28-84/40 40/28-84/56