Answers

Add 30/21 and 98/54

1^st number: 1 9/21, 2^nd number: 1 44/54

30/21 + 98/54 is 613/189.

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,
   30/21 = 30 × 18/21 × 18 = 540/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   98/54 = 98 × 7/54 × 7 = 686/378
4. Add the two like fractions:
   540/378 + 686/378 = 540 + 686/378 = 1226/378
5. 1226/378 simplified gives 613/189
6. So, 30/21 + 98/54 = 613/189
   In mixed form: 346/189

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