Answers

Add 40/28 and 42/54

1^st number: 1 12/28, 2^nd number: 42/54

40/28 + 42/54 is 139/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 54 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 28 × 27 = 756,
   40/28 = 40 × 27/28 × 27 = 1080/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   42/54 = 42 × 14/54 × 14 = 588/756
4. Add the two like fractions:
   1080/756 + 588/756 = 1080 + 588/756 = 1668/756
5. 1668/756 simplified gives 139/63
6. So, 40/28 + 42/54 = 139/63
   In mixed form: 213/63

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