Answers

Add 4/18 and 7/90

4/18 + 7/90 is 3/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   4/18 = 4 × 5/18 × 5 = 20/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   7/90 = 7 × 1/90 × 1 = 7/90
4. Add the two like fractions:
   20/90 + 7/90 = 20 + 7/90 = 27/90
5. 27/90 simplified gives 3/10
6. So, 4/18 + 7/90 = 3/10

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