Subtract 30/40 from 63/4
1st number: 15 3/4, 2nd number: 30/40
63/4 - 30/40 is 15/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
63/4 = 63 × 10/4 × 10 = 630/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Subtract the two like fractions:
630/40 - 30/40 = 630 - 30/40 = 600/40 - After reducing the fraction, the answer is 15/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4-60/40 63/8-30/40 63/4-30/80 63/4-90/40 63/12-30/40 63/20-30/40 63/28-30/40