Answers

Add 90/27 and 70/20

1^st number: 3 9/27, 2^nd number: 3 10/20

90/27 + 70/20 is 41/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 27 × 20 = 540,
   90/27 = 90 × 20/27 × 20 = 1800/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   70/20 = 70 × 27/20 × 27 = 1890/540
4. Add the two like fractions:
   1800/540 + 1890/540 = 1800 + 1890/540 = 3690/540
5. 3690/540 simplified gives 41/6
6. So, 90/27 + 70/20 = 41/6
   In mixed form: 65/6

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