Answers

Add 40/54 and 90/20

1^st number: 40/54, 2^nd number: 4 10/20

40/54 + 90/20 is 283/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 54 × 10 = 540,
   40/54 = 40 × 10/54 × 10 = 400/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   90/20 = 90 × 27/20 × 27 = 2430/540
4. Add the two like fractions:
   400/540 + 2430/540 = 400 + 2430/540 = 2830/540
5. 2830/540 simplified gives 283/54
6. So, 40/54 + 90/20 = 283/54
   In mixed form: 513/54

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