Answers

Add 28/63 and 40/49

28/63 + 40/49 is 556/441.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 49 is 441
   
   Next, find the equivalent fraction of both fractional numbers with denominator 441
2. For the 1st fraction, since 63 × 7 = 441,
   28/63 = 28 × 7/63 × 7 = 196/441
3. Likewise, for the 2nd fraction, since 49 × 9 = 441,
   40/49 = 40 × 9/49 × 9 = 360/441
4. Add the two like fractions:
   196/441 + 360/441 = 196 + 360/441 = 556/441
5. So, 28/63 + 40/49 = 556/441
   In mixed form: 1115/441

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