Subtract 90/16 from 3/84
1st number: 3/84, 2nd number: 5 10/16
3/84 - 90/16 is -313/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
3/84 = 3 × 4/84 × 4 = 12/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
90/16 = 90 × 21/16 × 21 = 1890/336 - Subtract the two like fractions:
12/336 - 1890/336 = 12 - 1890/336 = -1878/336 - After reducing the fraction, the answer is -313/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84-90/16 3/84-90/32 9/84-90/16 3/84-90/48 15/84-90/16 3/84-90/80 21/84-90/16