Answers

Add 42/24 and 90/27

1^st number: 1 18/24, 2^nd number: 3 9/27

42/24 + 90/27 is 61/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 27 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 24 × 9 = 216,
   42/24 = 42 × 9/24 × 9 = 378/216
3. Likewise, for the 2nd fraction, since 27 × 8 = 216,
   90/27 = 90 × 8/27 × 8 = 720/216
4. Add the two like fractions:
   378/216 + 720/216 = 378 + 720/216 = 1098/216
5. 1098/216 simplified gives 61/12
6. So, 42/24 + 90/27 = 61/12
   In mixed form: 51/12

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