Answers

Add 5/75 and 7/90

5/75 + 7/90 is 13/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 75 × 6 = 450,
   5/75 = 5 × 6/75 × 6 = 30/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   7/90 = 7 × 5/90 × 5 = 35/450
4. Add the two like fractions:
   30/450 + 35/450 = 30 + 35/450 = 65/450
5. 65/450 simplified gives 13/90
6. So, 5/75 + 7/90 = 13/90

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