Subtract 9/49 from 5/70
5/70 - 9/49 is -11/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
5/70 = 5 × 7/70 × 7 = 35/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
9/49 = 9 × 10/49 × 10 = 90/490 - Subtract the two like fractions:
35/490 - 90/490 = 35 - 90/490 = -55/490 - After reducing the fraction, the answer is -11/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70-9/49 5/70-18/49 5/70-9/98 15/70-9/49 5/70-27/49 25/70-9/49 5/70-45/49 35/70-9/49 5/70-63/49