Answers

Add 45/81 and 75/40

1^st number: 45/81, 2^nd number: 1 35/40

45/81 + 75/40 is 175/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 40 is 3240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3240
2. For the 1st fraction, since 81 × 40 = 3240,
   45/81 = 45 × 40/81 × 40 = 1800/3240
3. Likewise, for the 2nd fraction, since 40 × 81 = 3240,
   75/40 = 75 × 81/40 × 81 = 6075/3240
4. Add the two like fractions:
   1800/3240 + 6075/3240 = 1800 + 6075/3240 = 7875/3240
5. 7875/3240 simplified gives 175/72
6. So, 45/81 + 75/40 = 175/72
   In mixed form: 231/72

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