Subtract 12/63 from 16/49
16/49 - 12/63 is 20/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
16/49 = 16 × 9/49 × 9 = 144/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
12/63 = 12 × 7/63 × 7 = 84/441 - Subtract the two like fractions:
144/441 - 84/441 = 144 - 84/441 = 60/441 - After reducing the fraction, the answer is 20/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/49-12/63 16/49-24/63 16/98-12/63 48/49-12/63 16/49-36/63 80/49-12/63 16/49-60/63 16/49-84/63