Answers

Add 42/90 and 48/45

1^st number: 42/90, 2^nd number: 1 3/45

42/90 + 48/45 is 23/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 45 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 45 × 2 = 90,
   48/45 = 48 × 2/45 × 2 = 96/90
4. Add the two like fractions:
   42/90 + 96/90 = 42 + 96/90 = 138/90
5. 138/90 simplified gives 23/15
6. So, 42/90 + 48/45 = 23/15
   In mixed form: 18/15

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