Answers

Subtract 21/27 from 84/49

1^st number: 1 35/49, 2^nd number: 21/27

84/49 - 21/27 is 59/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 27 is 1323
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1323
2. For the 1st fraction, since 49 × 27 = 1323,
   84/49 = 84 × 27/49 × 27 = 2268/1323
3. Likewise, for the 2nd fraction, since 27 × 49 = 1323,
   21/27 = 21 × 49/27 × 49 = 1029/1323
4. Subtract the two like fractions:
   2268/1323 - 1029/1323 = 2268 - 1029/1323 = 1239/1323
5. After reducing the fraction, the answer is 59/63

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₄₉-⁴²/₂₇ ⁸⁴/₉₈-²¹/₂₇ ⁸⁴/₄₉-²¹/₅₄ ⁸⁴/₄₉-⁶³/₂₇ ⁸⁴/₄₉-²¹/₈₁

Subtract Fractions Calculator