Answers

Add 54/84 and 42/10

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

54/84 + 42/10 is 339/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 10 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 10 × 42 = 420,
   42/10 = 42 × 42/10 × 42 = 1764/420
4. Add the two like fractions:
   270/420 + 1764/420 = 270 + 1764/420 = 2034/420
5. 2034/420 simplified gives 339/70
6. So, 54/84 + 42/10 = 339/70
   In mixed form: 459/70

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