Answers

Subtract 40/56 from 30/21

1^st number: 1 9/21, 2^nd number: 40/56

30/21 - 40/56 is 5/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 56 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 21 × 8 = 168,
   30/21 = 30 × 8/21 × 8 = 240/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
   40/56 = 40 × 3/56 × 3 = 120/168
4. Subtract the two like fractions:
   240/168 - 120/168 = 240 - 120/168 = 120/168
5. After reducing the fraction, the answer is 5/7

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