Answers

Add 90/25 and 30/20

1^st number: 3 15/25, 2^nd number: 1 10/20

90/25 + 30/20 is 51/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 20 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 25 × 4 = 100,
   90/25 = 90 × 4/25 × 4 = 360/100
3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
   30/20 = 30 × 5/20 × 5 = 150/100
4. Add the two like fractions:
   360/100 + 150/100 = 360 + 150/100 = 510/100
5. 510/100 simplified gives 51/10
6. So, 90/25 + 30/20 = 51/10
   In mixed form: 51/10

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