Subtract 90/16 from 42/98
1st number: 42/98, 2nd number: 5 10/16
42/98 - 90/16 is -291/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 16 is 784
Next, find the equivalent fraction of both fractional numbers with denominator 784 - For the 1st fraction, since 98 × 8 = 784,
42/98 = 42 × 8/98 × 8 = 336/784 - Likewise, for the 2nd fraction, since 16 × 49 = 784,
90/16 = 90 × 49/16 × 49 = 4410/784 - Subtract the two like fractions:
336/784 - 4410/784 = 336 - 4410/784 = -4074/784 - After reducing the fraction, the answer is -291/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98-90/16 42/98-90/32 42/98-90/48 42/98-90/80