Answers

Add 90/84 and 49/5

1^st number: 1 6/84, 2^nd number: 9 4/5

90/84 + 49/5 is 761/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 5 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   90/84 = 90 × 5/84 × 5 = 450/420
3. Likewise, for the 2nd fraction, since 5 × 84 = 420,
   49/5 = 49 × 84/5 × 84 = 4116/420
4. Add the two like fractions:
   450/420 + 4116/420 = 450 + 4116/420 = 4566/420
5. 4566/420 simplified gives 761/70
6. So, 90/84 + 49/5 = 761/70
   In mixed form: 1061/70

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