Answers

Add 4/42 and 90/45

1^st number: 4/42, 2^nd number: 2 0/45

4/42 + 90/45 is 44/21.

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,
   4/42 = 4 × 15/42 × 15 = 60/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   90/45 = 90 × 14/45 × 14 = 1260/630
4. Add the two like fractions:
   60/630 + 1260/630 = 60 + 1260/630 = 1320/630
5. 1320/630 simplified gives 44/21
6. So, 4/42 + 90/45 = 44/21
   In mixed form: 22/21

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