Answers

Add 42/63 and 4/30

42/63 + 4/30 is 4/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 30 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   42/63 = 42 × 10/63 × 10 = 420/630
3. Likewise, for the 2nd fraction, since 30 × 21 = 630,
   4/30 = 4 × 21/30 × 21 = 84/630
4. Add the two like fractions:
   420/630 + 84/630 = 420 + 84/630 = 504/630
5. 504/630 simplified gives 4/5
6. So, 42/63 + 4/30 = 4/5

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