Subtract 21/36 from 27/35
27/35 - 21/36 is 79/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 35 × 36 = 1260,
27/35 = 27 × 36/35 × 36 = 972/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
21/36 = 21 × 35/36 × 35 = 735/1260 - Subtract the two like fractions:
972/1260 - 735/1260 = 972 - 735/1260 = 237/1260 - After reducing the fraction, the answer is 79/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/35-21/36 27/35-42/36 27/70-21/36 27/35-21/72 81/35-21/36 27/35-63/36