Answers

Add 21/15 and 5/90

1^st number: 1 6/15, 2^nd number: 5/90

21/15 + 5/90 is 131/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 15 × 6 = 90,
   21/15 = 21 × 6/15 × 6 = 126/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   5/90 = 5 × 1/90 × 1 = 5/90
4. Add the two like fractions:
   126/90 + 5/90 = 126 + 5/90 = 131/90
5. So, 21/15 + 5/90 = 131/90
   In mixed form: 141/90

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