Answers

Add 27/90 and 70/42

1^st number: 27/90, 2^nd number: 1 28/42

27/90 + 70/42 is 59/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 42 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   27/90 = 27 × 7/90 × 7 = 189/630
3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
   70/42 = 70 × 15/42 × 15 = 1050/630
4. Add the two like fractions:
   189/630 + 1050/630 = 189 + 1050/630 = 1239/630
5. 1239/630 simplified gives 59/30
6. So, 27/90 + 70/42 = 59/30
   In mixed form: 129/30

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