Subtract 14/21 from 49/70
49/70 - 14/21 is 1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
49/70 = 49 × 3/70 × 3 = 147/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Subtract the two like fractions:
147/210 - 140/210 = 147 - 140/210 = 7/210 - After reducing the fraction, the answer is 1/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70-14/21 49/70-28/21 49/70-14/42 49/70-42/21 49/70-14/63 49/70-70/21 49/70-98/21