Answers

Add 12/63 and 56/90

12/63 + 56/90 is 256/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   12/63 = 12 × 10/63 × 10 = 120/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   56/90 = 56 × 7/90 × 7 = 392/630
4. Add the two like fractions:
   120/630 + 392/630 = 120 + 392/630 = 512/630
5. 512/630 simplified gives 256/315
6. So, 12/63 + 56/90 = 256/315

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