Answers

Add 14/90 and 90/21

1^st number: 14/90, 2^nd number: 4 6/21

14/90 + 90/21 is 1399/315.

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,
   90/21 = 90 × 30/21 × 30 = 2700/630
4. Add the two like fractions:
   98/630 + 2700/630 = 98 + 2700/630 = 2798/630
5. 2798/630 simplified gives 1399/315
6. So, 14/90 + 90/21 = 1399/315
   In mixed form: 4139/315

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