Subtract 18/16 from 7/27
1st number: 7/27, 2nd number: 1 2/16
7/27 - 18/16 is -187/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 27 × 16 = 432,
7/27 = 7 × 16/27 × 16 = 112/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
18/16 = 18 × 27/16 × 27 = 486/432 - Subtract the two like fractions:
112/432 - 486/432 = 112 - 486/432 = -374/432 - After reducing the fraction, the answer is -187/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-18/16 7/27-36/16 7/54-18/16 7/27-18/32 21/27-18/16 7/27-54/16 7/81-18/16 7/27-18/48 35/27-18/16 7/27-90/16 7/27-18/80 49/27-18/16