Answers

Add 7/54 and 63/21

1^st number: 7/54, 2^nd number: 3 0/21

7/54 + 63/21 is 169/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 21 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   7/54 = 7 × 7/54 × 7 = 49/378
3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
   63/21 = 63 × 18/21 × 18 = 1134/378
4. Add the two like fractions:
   49/378 + 1134/378 = 49 + 1134/378 = 1183/378
5. 1183/378 simplified gives 169/54
6. So, 7/54 + 63/21 = 169/54
   In mixed form: 37/54

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