Answers

Add 12/90 and 10/30

12/90 + 10/30 is 7/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 30 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   12/90 = 12 × 1/90 × 1 = 12/90
3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
   10/30 = 10 × 3/30 × 3 = 30/90
4. Add the two like fractions:
   12/90 + 30/90 = 12 + 30/90 = 42/90
5. 42/90 simplified gives 7/15
6. So, 12/90 + 10/30 = 7/15

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