Subtract 27/16 from 90/42
1st number: 2 6/42, 2nd number: 1 11/16
90/42 - 27/16 is 51/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
90/42 = 90 × 8/42 × 8 = 720/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
27/16 = 27 × 21/16 × 21 = 567/336 - Subtract the two like fractions:
720/336 - 567/336 = 720 - 567/336 = 153/336 - After reducing the fraction, the answer is 51/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42-54/16 90/84-27/16 90/42-27/32 90/42-81/16 90/42-27/48 90/42-27/80