Answers

Add 70/42 and 40/27

1^st number: 1 28/42, 2^nd number: 1 13/27

70/42 + 40/27 is 85/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 27 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 42 × 9 = 378,
   70/42 = 70 × 9/42 × 9 = 630/378
3. Likewise, for the 2nd fraction, since 27 × 14 = 378,
   40/27 = 40 × 14/27 × 14 = 560/378
4. Add the two like fractions:
   630/378 + 560/378 = 630 + 560/378 = 1190/378
5. 1190/378 simplified gives 85/27
6. So, 70/42 + 40/27 = 85/27
   In mixed form: 34/27

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