Answers

Add 14/30 and 54/21

1^st number: 14/30, 2^nd number: 2 12/21

14/30 + 54/21 is 319/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   14/30 = 14 × 7/30 × 7 = 98/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   54/21 = 54 × 10/21 × 10 = 540/210
4. Add the two like fractions:
   98/210 + 540/210 = 98 + 540/210 = 638/210
5. 638/210 simplified gives 319/105
6. So, 14/30 + 54/21 = 319/105
   In mixed form: 34/105

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