Answers

Add 18/21 and 98/54

1^st number: 18/21, 2^nd number: 1 44/54

18/21 + 98/54 is 505/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 21 × 18 = 378,
   18/21 = 18 × 18/21 × 18 = 324/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   98/54 = 98 × 7/54 × 7 = 686/378
4. Add the two like fractions:
   324/378 + 686/378 = 324 + 686/378 = 1010/378
5. 1010/378 simplified gives 505/189
6. So, 18/21 + 98/54 = 505/189
   In mixed form: 2127/189

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