Answers

Add 42/80 and 63/54

1^st number: 42/80, 2^nd number: 1 9/54

42/80 + 63/54 is 203/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 54 is 2160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2160
2. For the 1st fraction, since 80 × 27 = 2160,
   42/80 = 42 × 27/80 × 27 = 1134/2160
3. Likewise, for the 2nd fraction, since 54 × 40 = 2160,
   63/54 = 63 × 40/54 × 40 = 2520/2160
4. Add the two like fractions:
   1134/2160 + 2520/2160 = 1134 + 2520/2160 = 3654/2160
5. 3654/2160 simplified gives 203/120
6. So, 42/80 + 63/54 = 203/120
   In mixed form: 183/120

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