Answers

Subtract 40/49 from 21/24

21/24 - 40/49 is 23/392.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 49 is 1176
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1176
2. For the 1st fraction, since 24 × 49 = 1176,
   21/24 = 21 × 49/24 × 49 = 1029/1176
3. Likewise, for the 2nd fraction, since 49 × 24 = 1176,
   40/49 = 40 × 24/49 × 24 = 960/1176
4. Subtract the two like fractions:
   1029/1176 - 960/1176 = 1029 - 960/1176 = 69/1176
5. After reducing the fraction, the answer is 23/392

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