Answers

Add 40/56 and 45/21

1^st number: 40/56, 2^nd number: 2 3/21

40/56 + 45/21 is 20/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 21 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 56 × 3 = 168,
   40/56 = 40 × 3/56 × 3 = 120/168
3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
   45/21 = 45 × 8/21 × 8 = 360/168
4. Add the two like fractions:
   120/168 + 360/168 = 120 + 360/168 = 480/168
5. 480/168 simplified gives 20/7
6. So, 40/56 + 45/21 = 20/7
   In mixed form: 26/7

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