Subtract 63/5 from 40/28
1st number: 1 12/28, 2nd number: 12 3/5
40/28 - 63/5 is -391/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
40/28 = 40 × 5/28 × 5 = 200/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
63/5 = 63 × 28/5 × 28 = 1764/140 - Subtract the two like fractions:
200/140 - 1764/140 = 200 - 1764/140 = -1564/140 - After reducing the fraction, the answer is -391/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-63/5 40/56-63/5 40/28-63/10 40/84-63/5 40/28-63/15 40/28-63/25 40/28-63/35