Answers

Add 90/45 and 35/21

1^st number: 2 0/45, 2^nd number: 1 14/21

90/45 + 35/21 is 11/3.

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,
   90/45 = 90 × 7/45 × 7 = 630/315
3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
   35/21 = 35 × 15/21 × 15 = 525/315
4. Add the two like fractions:
   630/315 + 525/315 = 630 + 525/315 = 1155/315
5. 1155/315 simplified gives 11/3
6. So, 90/45 + 35/21 = 11/3
   In mixed form: 32/3

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