Answers

Add 90/45 and 20/54

1^st number: 2 0/45, 2^nd number: 20/54

90/45 + 20/54 is 64/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 45 × 6 = 270,
   90/45 = 90 × 6/45 × 6 = 540/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   20/54 = 20 × 5/54 × 5 = 100/270
4. Add the two like fractions:
   540/270 + 100/270 = 540 + 100/270 = 640/270
5. 640/270 simplified gives 64/27
6. So, 90/45 + 20/54 = 64/27
   In mixed form: 210/27

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