Answers

Add 6/72 and 45/63

6/72 + 45/63 is 67/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   6/72 = 6 × 7/72 × 7 = 42/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   45/63 = 45 × 8/63 × 8 = 360/504
4. Add the two like fractions:
   42/504 + 360/504 = 42 + 360/504 = 402/504
5. 402/504 simplified gives 67/84
6. So, 6/72 + 45/63 = 67/84

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