Answers

Add 54/42 and 30/45

1^st number: 1 12/42, 2^nd number: 30/45

54/42 + 30/45 is 41/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   54/42 = 54 × 15/42 × 15 = 810/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   30/45 = 30 × 14/45 × 14 = 420/630
4. Add the two like fractions:
   810/630 + 420/630 = 810 + 420/630 = 1230/630
5. 1230/630 simplified gives 41/21
6. So, 54/42 + 30/45 = 41/21
   In mixed form: 120/21

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