Answers

Add 4/63 and 35/90

4/63 + 35/90 is 19/42.

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,
   4/63 = 4 × 10/63 × 10 = 40/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   35/90 = 35 × 7/90 × 7 = 245/630
4. Add the two like fractions:
   40/630 + 245/630 = 40 + 245/630 = 285/630
5. 285/630 simplified gives 19/42
6. So, 4/63 + 35/90 = 19/42

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