Answers

Add 90/54 and 30/40

1^st number: 1 36/54, 2^nd number: 30/40

90/54 + 30/40 is 29/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 54 × 20 = 1080,
   90/54 = 90 × 20/54 × 20 = 1800/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   30/40 = 30 × 27/40 × 27 = 810/1080
4. Add the two like fractions:
   1800/1080 + 810/1080 = 1800 + 810/1080 = 2610/1080
5. 2610/1080 simplified gives 29/12
6. So, 90/54 + 30/40 = 29/12
   In mixed form: 25/12

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