Answers

Add 98/84 and 18/15

1^st number: 1 14/84, 2^nd number: 1 3/15

98/84 + 18/15 is 71/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 15 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   98/84 = 98 × 5/84 × 5 = 490/420
3. Likewise, for the 2nd fraction, since 15 × 28 = 420,
   18/15 = 18 × 28/15 × 28 = 504/420
4. Add the two like fractions:
   490/420 + 504/420 = 490 + 504/420 = 994/420
5. 994/420 simplified gives 71/30
6. So, 98/84 + 18/15 = 71/30
   In mixed form: 211/30

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