Answers

Add 84/63 and 6/90

1^st number: 1 21/63, 2^nd number: 6/90

84/63 + 6/90 is 7/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   84/63 = 84 × 10/63 × 10 = 840/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   6/90 = 6 × 7/90 × 7 = 42/630
4. Add the two like fractions:
   840/630 + 42/630 = 840 + 42/630 = 882/630
5. 882/630 simplified gives 7/5
6. So, 84/63 + 6/90 = 7/5
   In mixed form: 12/5

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