Answers

Add 42/15 and 90/27

1^st number: 2 12/15, 2^nd number: 3 9/27

42/15 + 90/27 is 92/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 27 is 135
   
   Next, find the equivalent fraction of both fractional numbers with denominator 135
2. For the 1st fraction, since 15 × 9 = 135,
   42/15 = 42 × 9/15 × 9 = 378/135
3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
   90/27 = 90 × 5/27 × 5 = 450/135
4. Add the two like fractions:
   378/135 + 450/135 = 378 + 450/135 = 828/135
5. 828/135 simplified gives 92/15
6. So, 42/15 + 90/27 = 92/15
   In mixed form: 62/15

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