Answers

Add 90/75 and 70/20

1^st number: 1 15/75, 2^nd number: 3 10/20

90/75 + 70/20 is 47/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 20 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 75 × 4 = 300,
   90/75 = 90 × 4/75 × 4 = 360/300
3. Likewise, for the 2nd fraction, since 20 × 15 = 300,
   70/20 = 70 × 15/20 × 15 = 1050/300
4. Add the two like fractions:
   360/300 + 1050/300 = 360 + 1050/300 = 1410/300
5. 1410/300 simplified gives 47/10
6. So, 90/75 + 70/20 = 47/10
   In mixed form: 47/10

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