Subtract 21/10 from 14/49
1st number: 14/49, 2nd number: 2 1/10
14/49 - 21/10 is -127/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
14/49 = 14 × 10/49 × 10 = 140/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
21/10 = 21 × 49/10 × 49 = 1029/490 - Subtract the two like fractions:
140/490 - 1029/490 = 140 - 1029/490 = -889/490 - After reducing the fraction, the answer is -127/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/49-21/10 14/49-42/10 14/98-21/10 14/49-21/20 42/49-21/10 14/49-63/10 14/49-21/30 70/49-21/10 14/49-21/50 98/49-21/10 14/49-21/70