Answers

Add 28/63 and 4/10

28/63 + 4/10 is 38/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 10 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 10 × 63 = 630,
   4/10 = 4 × 63/10 × 63 = 252/630
4. Add the two like fractions:
   280/630 + 252/630 = 280 + 252/630 = 532/630
5. 532/630 simplified gives 38/45
6. So, 28/63 + 4/10 = 38/45

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