Answers

Add 10/84 and 50/15

1^st number: 10/84, 2^nd number: 3 5/15

10/84 + 50/15 is 145/42.

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,
   10/84 = 10 × 5/84 × 5 = 50/420
3. Likewise, for the 2nd fraction, since 15 × 28 = 420,
   50/15 = 50 × 28/15 × 28 = 1400/420
4. Add the two like fractions:
   50/420 + 1400/420 = 50 + 1400/420 = 1450/420
5. 1450/420 simplified gives 145/42
6. So, 10/84 + 50/15 = 145/42
   In mixed form: 319/42

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