Answers

Add 54/84 and 70/15

1^st number: 54/84, 2^nd number: 4 10/15

54/84 + 70/15 is 223/42.

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,
   54/84 = 54 × 5/84 × 5 = 270/420
3. Likewise, for the 2nd fraction, since 15 × 28 = 420,
   70/15 = 70 × 28/15 × 28 = 1960/420
4. Add the two like fractions:
   270/420 + 1960/420 = 270 + 1960/420 = 2230/420
5. 2230/420 simplified gives 223/42
6. So, 54/84 + 70/15 = 223/42
   In mixed form: 513/42

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