Answers

Add 90/3 and 42/45

1^st number: 30 0/3, 2^nd number: 42/45

90/3 + 42/45 is 464/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 45 is 45
   
   Next, find the equivalent fraction of both fractional numbers with denominator 45
2. For the 1st fraction, since 3 × 15 = 45,
   90/3 = 90 × 15/3 × 15 = 1350/45
3. Likewise, for the 2nd fraction, since 45 × 1 = 45,
   42/45 = 42 × 1/45 × 1 = 42/45
4. Add the two like fractions:
   1350/45 + 42/45 = 1350 + 42/45 = 1392/45
5. 1392/45 simplified gives 464/15
6. So, 90/3 + 42/45 = 464/15
   In mixed form: 3014/15

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