Answers

Add 90/25 and 42/45

1^st number: 3 15/25, 2^nd number: 42/45

90/25 + 42/45 is 68/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 45 is 225
   
   Next, find the equivalent fraction of both fractional numbers with denominator 225
2. For the 1st fraction, since 25 × 9 = 225,
   90/25 = 90 × 9/25 × 9 = 810/225
3. Likewise, for the 2nd fraction, since 45 × 5 = 225,
   42/45 = 42 × 5/45 × 5 = 210/225
4. Add the two like fractions:
   810/225 + 210/225 = 810 + 210/225 = 1020/225
5. 1020/225 simplified gives 68/15
6. So, 90/25 + 42/45 = 68/15
   In mixed form: 48/15

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