Answers

Add 70/28 and 20/90

1^st number: 2 14/28, 2^nd number: 20/90

70/28 + 20/90 is 49/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   70/28 = 70 × 45/28 × 45 = 3150/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   20/90 = 20 × 14/90 × 14 = 280/1260
4. Add the two like fractions:
   3150/1260 + 280/1260 = 3150 + 280/1260 = 3430/1260
5. 3430/1260 simplified gives 49/18
6. So, 70/28 + 20/90 = 49/18
   In mixed form: 213/18

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