Subtract 9/70 from 90/49
1st number: 1 41/49, 2nd number: 9/70
90/49 - 9/70 is 837/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
90/49 = 90 × 10/49 × 10 = 900/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
9/70 = 9 × 7/70 × 7 = 63/490 - Subtract the two like fractions:
900/490 - 63/490 = 900 - 63/490 = 837/490 - In mixed form: 1347/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49-18/70 90/98-9/70 90/49-27/70 90/49-45/70 90/49-63/70