Answers

Add 40/90 and 98/21

1^st number: 40/90, 2^nd number: 4 14/21

40/90 + 98/21 is 46/9.

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,
   40/90 = 40 × 7/90 × 7 = 280/630
3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
   98/21 = 98 × 30/21 × 30 = 2940/630
4. Add the two like fractions:
   280/630 + 2940/630 = 280 + 2940/630 = 3220/630
5. 3220/630 simplified gives 46/9
6. So, 40/90 + 98/21 = 46/9
   In mixed form: 51/9

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