Answers

Add 90/54 and 1/90

1^st number: 1 36/54, 2^nd number: 1/90

90/54 + 1/90 is 151/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 90 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 54 × 5 = 270,
   90/54 = 90 × 5/54 × 5 = 450/270
3. Likewise, for the 2nd fraction, since 90 × 3 = 270,
   1/90 = 1 × 3/90 × 3 = 3/270
4. Add the two like fractions:
   450/270 + 3/270 = 450 + 3/270 = 453/270
5. 453/270 simplified gives 151/90
6. So, 90/54 + 1/90 = 151/90
   In mixed form: 161/90

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