Subtract 98/70 from 25/49
1st number: 25/49, 2nd number: 1 28/70
25/49 - 98/70 is -218/245.
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,
25/49 = 25 × 10/49 × 10 = 250/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
98/70 = 98 × 7/70 × 7 = 686/490 - Subtract the two like fractions:
250/490 - 686/490 = 250 - 686/490 = -436/490 - After reducing the fraction, the answer is -218/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/49-98/70 25/98-98/70 75/49-98/70