Subtract 54/49 from 8/40
1st number: 8/40, 2nd number: 1 5/49
8/40 - 54/49 is -221/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
8/40 = 8 × 49/40 × 49 = 392/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
54/49 = 54 × 40/49 × 40 = 2160/1960 - Subtract the two like fractions:
392/1960 - 2160/1960 = 392 - 2160/1960 = -1768/1960 - After reducing the fraction, the answer is -221/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40-54/49 8/80-54/49 8/40-54/98 24/40-54/49 56/40-54/49