Answers

Add 20/24 and 90/45

1^st number: 20/24, 2^nd number: 2 0/45

20/24 + 90/45 is 17/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 45 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 24 × 15 = 360,
   20/24 = 20 × 15/24 × 15 = 300/360
3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
   90/45 = 90 × 8/45 × 8 = 720/360
4. Add the two like fractions:
   300/360 + 720/360 = 300 + 720/360 = 1020/360
5. 1020/360 simplified gives 17/6
6. So, 20/24 + 90/45 = 17/6
   In mixed form: 25/6

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