Answers

Add 70/90 and 90/28

1^st number: 70/90, 2^nd number: 3 6/28

70/90 + 90/28 is 503/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 28 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 90 × 14 = 1260,
   70/90 = 70 × 14/90 × 14 = 980/1260
3. Likewise, for the 2nd fraction, since 28 × 45 = 1260,
   90/28 = 90 × 45/28 × 45 = 4050/1260
4. Add the two like fractions:
   980/1260 + 4050/1260 = 980 + 4050/1260 = 5030/1260
5. 5030/1260 simplified gives 503/126
6. So, 70/90 + 90/28 = 503/126
   In mixed form: 3125/126

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