Answers

Add 54/42 and 81/30

1^st number: 1 12/42, 2^nd number: 2 21/30

54/42 + 81/30 is 279/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   54/42 = 54 × 5/42 × 5 = 270/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   81/30 = 81 × 7/30 × 7 = 567/210
4. Add the two like fractions:
   270/210 + 567/210 = 270 + 567/210 = 837/210
5. 837/210 simplified gives 279/70
6. So, 54/42 + 81/30 = 279/70
   In mixed form: 369/70

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