Answers

Subtract 45/72 from 56/21

1^st number: 2 14/21, 2^nd number: 45/72

56/21 - 45/72 is 49/24.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 21 × 24 = 504,
   56/21 = 56 × 24/21 × 24 = 1344/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   45/72 = 45 × 7/72 × 7 = 315/504
4. Subtract the two like fractions:
   1344/504 - 315/504 = 1344 - 315/504 = 1029/504
5. After reducing the fraction, the answer is 49/24
6. In mixed form: 21/24

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