Answers

Add 15/56 and 45/75

15/56 + 45/75 is 243/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 75 is 4200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4200
2. For the 1st fraction, since 56 × 75 = 4200,
   15/56 = 15 × 75/56 × 75 = 1125/4200
3. Likewise, for the 2nd fraction, since 75 × 56 = 4200,
   45/75 = 45 × 56/75 × 56 = 2520/4200
4. Add the two like fractions:
   1125/4200 + 2520/4200 = 1125 + 2520/4200 = 3645/4200
5. 3645/4200 simplified gives 243/280
6. So, 15/56 + 45/75 = 243/280

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