Answers

Add 49/42 and 63/90

1^st number: 1 7/42, 2^nd number: 63/90

49/42 + 63/90 is 28/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   49/42 = 49 × 15/42 × 15 = 735/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   63/90 = 63 × 7/90 × 7 = 441/630
4. Add the two like fractions:
   735/630 + 441/630 = 735 + 441/630 = 1176/630
5. 1176/630 simplified gives 28/15
6. So, 49/42 + 63/90 = 28/15
   In mixed form: 113/15

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