Answers

Add 70/4 and 45/90

1^st number: 17 2/4, 2^nd number: 45/90

70/4 + 45/90 is 18/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 4 × 45 = 180,
   70/4 = 70 × 45/4 × 45 = 3150/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   45/90 = 45 × 2/90 × 2 = 90/180
4. Add the two like fractions:
   3150/180 + 90/180 = 3150 + 90/180 = 3240/180
5. 3240/180 simplified gives 18/1
6. So, 70/4 + 45/90 = 18/1

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