Answers

Add 42/25 and 70/90

1^st number: 1 17/25, 2^nd number: 70/90

42/25 + 70/90 is 553/225.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 25 × 18 = 450,
   42/25 = 42 × 18/25 × 18 = 756/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   70/90 = 70 × 5/90 × 5 = 350/450
4. Add the two like fractions:
   756/450 + 350/450 = 756 + 350/450 = 1106/450
5. 1106/450 simplified gives 553/225
6. So, 42/25 + 70/90 = 553/225
   In mixed form: 2103/225

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