Answers

Add 42/2 and 45/60

1^st number: 21 0/2, 2^nd number: 45/60

42/2 + 45/60 is 87/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 60 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 2 × 30 = 60,
   42/2 = 42 × 30/2 × 30 = 1260/60
3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
   45/60 = 45 × 1/60 × 1 = 45/60
4. Add the two like fractions:
   1260/60 + 45/60 = 1260 + 45/60 = 1305/60
5. 1305/60 simplified gives 87/4
6. So, 42/2 + 45/60 = 87/4
   In mixed form: 213/4

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