Answers

Add 28/63 and 35/90

28/63 + 35/90 is 5/6.

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,
   28/63 = 28 × 10/63 × 10 = 280/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   35/90 = 35 × 7/90 × 7 = 245/630
4. Add the two like fractions:
   280/630 + 245/630 = 280 + 245/630 = 525/630
5. 525/630 simplified gives 5/6
6. So, 28/63 + 35/90 = 5/6

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