Answers

Add 42/90 and 48/18

1^st number: 42/90, 2^nd number: 2 12/18

42/90 + 48/18 is 47/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   42/90 = 42 × 1/90 × 1 = 42/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   48/18 = 48 × 5/18 × 5 = 240/90
4. Add the two like fractions:
   42/90 + 240/90 = 42 + 240/90 = 282/90
5. 282/90 simplified gives 47/15
6. So, 42/90 + 48/18 = 47/15
   In mixed form: 32/15

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