Subtract 45/49 from 8/10
8/10 - 45/49 is -29/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
8/10 = 8 × 49/10 × 49 = 392/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
45/49 = 45 × 10/49 × 10 = 450/490 - Subtract the two like fractions:
392/490 - 450/490 = 392 - 450/490 = -58/490 - After reducing the fraction, the answer is -29/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10-45/49 8/10-90/49 8/20-45/49 8/10-45/98 24/10-45/49 8/30-45/49 40/10-45/49 8/50-45/49 56/10-45/49 8/70-45/49