Subtract 21/16 from 35/27
1st number: 1 8/27, 2nd number: 1 5/16
35/27 - 21/16 is -7/432.
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,
35/27 = 35 × 16/27 × 16 = 560/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
21/16 = 21 × 27/16 × 27 = 567/432 - Subtract the two like fractions:
560/432 - 567/432 = 560 - 567/432 = -7/432
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27-21/16 35/27-42/16 35/54-21/16 35/27-21/32 35/27-63/16 35/81-21/16 35/27-21/48 35/27-21/80