Answers

Add 25/56 and 40/90

25/56 + 40/90 is 449/504.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 90 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 56 × 45 = 2520,
   25/56 = 25 × 45/56 × 45 = 1125/2520
3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
   40/90 = 40 × 28/90 × 28 = 1120/2520
4. Add the two like fractions:
   1125/2520 + 1120/2520 = 1125 + 1120/2520 = 2245/2520
5. 2245/2520 simplified gives 449/504
6. So, 25/56 + 40/90 = 449/504

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