Answers

Add 4/28 and 45/90

4/28 + 45/90 is 9/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   4/28 = 4 × 45/28 × 45 = 180/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   45/90 = 45 × 14/90 × 14 = 630/1260
4. Add the two like fractions:
   180/1260 + 630/1260 = 180 + 630/1260 = 810/1260
5. 810/1260 simplified gives 9/14
6. So, 4/28 + 45/90 = 9/14

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