Answers

Add 75/54 and 84/40

1^st number: 1 21/54, 2^nd number: 2 4/40

75/54 + 84/40 is 157/45.

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,
   75/54 = 75 × 20/54 × 20 = 1500/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   84/40 = 84 × 27/40 × 27 = 2268/1080
4. Add the two like fractions:
   1500/1080 + 2268/1080 = 1500 + 2268/1080 = 3768/1080
5. 3768/1080 simplified gives 157/45
6. So, 75/54 + 84/40 = 157/45
   In mixed form: 322/45

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