Answers

Add 4/63 and 9/40

4/63 + 9/40 is 727/2520.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 40 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 63 × 40 = 2520,
   4/63 = 4 × 40/63 × 40 = 160/2520
3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
   9/40 = 9 × 63/40 × 63 = 567/2520
4. Add the two like fractions:
   160/2520 + 567/2520 = 160 + 567/2520 = 727/2520
5. So, 4/63 + 9/40 = 727/2520

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