Subtract 70/45 from 40/98
1st number: 40/98, 2nd number: 1 25/45
40/98 - 70/45 is -506/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 45 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
40/98 = 40 × 45/98 × 45 = 1800/4410 - Likewise, for the 2nd fraction, since 45 × 98 = 4410,
70/45 = 70 × 98/45 × 98 = 6860/4410 - Subtract the two like fractions:
1800/4410 - 6860/4410 = 1800 - 6860/4410 = -5060/4410 - After reducing the fraction, the answer is -506/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/98-70/45 40/98-70/90