Answers

Add 70/20 and 45/75

1^st number: 3 10/20, 2^nd number: 45/75

70/20 + 45/75 is 41/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 75 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 20 × 15 = 300,
   70/20 = 70 × 15/20 × 15 = 1050/300
3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
   45/75 = 45 × 4/75 × 4 = 180/300
4. Add the two like fractions:
   1050/300 + 180/300 = 1050 + 180/300 = 1230/300
5. 1230/300 simplified gives 41/10
6. So, 70/20 + 45/75 = 41/10
   In mixed form: 41/10

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