Answers

Add 27/63 and 6/90

27/63 + 6/90 is 52/105.

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,
   27/63 = 27 × 10/63 × 10 = 270/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   6/90 = 6 × 7/90 × 7 = 42/630
4. Add the two like fractions:
   270/630 + 42/630 = 270 + 42/630 = 312/630
5. 312/630 simplified gives 52/105
6. So, 27/63 + 6/90 = 52/105

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