Subtract 3/90 from 70/49
1st number: 1 21/49, 2nd number: 3/90
70/49 - 3/90 is 293/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
70/49 = 70 × 90/49 × 90 = 6300/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
3/90 = 3 × 49/90 × 49 = 147/4410 - Subtract the two like fractions:
6300/4410 - 147/4410 = 6300 - 147/4410 = 6153/4410 - After reducing the fraction, the answer is 293/210
- In mixed form: 183/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/49-6/90 70/98-3/90 70/49-9/90 70/49-15/90 70/49-21/90