Answers

Add 14/90 and 54/21

1^st number: 14/90, 2^nd number: 2 12/21

14/90 + 54/21 is 859/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 21 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   14/90 = 14 × 7/90 × 7 = 98/630
3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
   54/21 = 54 × 30/21 × 30 = 1620/630
4. Add the two like fractions:
   98/630 + 1620/630 = 98 + 1620/630 = 1718/630
5. 1718/630 simplified gives 859/315
6. So, 14/90 + 54/21 = 859/315
   In mixed form: 2229/315

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