Answers

Add 45/27 and 40/42

1^st number: 1 18/27, 2^nd number: 40/42

45/27 + 40/42 is 55/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 42 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 27 × 14 = 378,
   45/27 = 45 × 14/27 × 14 = 630/378
3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
   40/42 = 40 × 9/42 × 9 = 360/378
4. Add the two like fractions:
   630/378 + 360/378 = 630 + 360/378 = 990/378
5. 990/378 simplified gives 55/21
6. So, 45/27 + 40/42 = 55/21
   In mixed form: 213/21

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