Answers

Add 40/60 and 45/21

1^st number: 40/60, 2^nd number: 2 3/21

40/60 + 45/21 is 59/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 21 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 60 × 7 = 420,
   40/60 = 40 × 7/60 × 7 = 280/420
3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
   45/21 = 45 × 20/21 × 20 = 900/420
4. Add the two like fractions:
   280/420 + 900/420 = 280 + 900/420 = 1180/420
5. 1180/420 simplified gives 59/21
6. So, 40/60 + 45/21 = 59/21
   In mixed form: 217/21

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