Answers

Add 40/45 and 4/90

40/45 + 4/90 is 14/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 45 × 2 = 90,
   40/45 = 40 × 2/45 × 2 = 80/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   4/90 = 4 × 1/90 × 1 = 4/90
4. Add the two like fractions:
   80/90 + 4/90 = 80 + 4/90 = 84/90
5. 84/90 simplified gives 14/15
6. So, 40/45 + 4/90 = 14/15

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