Answers

Add 27/42 and 70/45

1^st number: 27/42, 2^nd number: 1 25/45

27/42 + 70/45 is 277/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   27/42 = 27 × 15/42 × 15 = 405/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   70/45 = 70 × 14/45 × 14 = 980/630
4. Add the two like fractions:
   405/630 + 980/630 = 405 + 980/630 = 1385/630
5. 1385/630 simplified gives 277/126
6. So, 27/42 + 70/45 = 277/126
   In mixed form: 225/126

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