Answers

Add 90/42 and 90/18

1^st number: 2 6/42, 2^nd number: 5 0/18

90/42 + 90/18 is 50/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 42 × 3 = 126,
   90/42 = 90 × 3/42 × 3 = 270/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   90/18 = 90 × 7/18 × 7 = 630/126
4. Add the two like fractions:
   270/126 + 630/126 = 270 + 630/126 = 900/126
5. 900/126 simplified gives 50/7
6. So, 90/42 + 90/18 = 50/7
   In mixed form: 71/7

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