Answers

Add 20/45 and 98/21

1^st number: 20/45, 2^nd number: 4 14/21

20/45 + 98/21 is 46/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 21 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   20/45 = 20 × 7/45 × 7 = 140/315
3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
   98/21 = 98 × 15/21 × 15 = 1470/315
4. Add the two like fractions:
   140/315 + 1470/315 = 140 + 1470/315 = 1610/315
5. 1610/315 simplified gives 46/9
6. So, 20/45 + 98/21 = 46/9
   In mixed form: 51/9

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