Subtract 12/40 from 63/28
1st number: 2 7/28, 2nd number: 12/40
63/28 - 12/40 is 39/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
63/28 = 63 × 10/28 × 10 = 630/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Subtract the two like fractions:
630/280 - 84/280 = 630 - 84/280 = 546/280 - After reducing the fraction, the answer is 39/20
- In mixed form: 119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/28-24/40 63/56-12/40 63/28-12/80 63/28-36/40 63/84-12/40 63/28-60/40 63/28-84/40