Answers

Add 4/63 and 28/72

4/63 + 28/72 is 19/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   4/63 = 4 × 8/63 × 8 = 32/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   28/72 = 28 × 7/72 × 7 = 196/504
4. Add the two like fractions:
   32/504 + 196/504 = 32 + 196/504 = 228/504
5. 228/504 simplified gives 19/42
6. So, 4/63 + 28/72 = 19/42

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