Subtract 12/40 from 49/63
49/63 - 12/40 is 43/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
49/63 = 49 × 40/63 × 40 = 1960/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
12/40 = 12 × 63/40 × 63 = 756/2520 - Subtract the two like fractions:
1960/2520 - 756/2520 = 1960 - 756/2520 = 1204/2520 - After reducing the fraction, the answer is 43/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/63-12/40 49/63-24/40 49/63-12/80 49/63-36/40 49/63-60/40 49/63-84/40