Answers

Add 90/75 and 75/10

1^st number: 1 15/75, 2^nd number: 7 5/10

90/75 + 75/10 is 87/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 10 is 150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 150
2. For the 1st fraction, since 75 × 2 = 150,
   90/75 = 90 × 2/75 × 2 = 180/150
3. Likewise, for the 2nd fraction, since 10 × 15 = 150,
   75/10 = 75 × 15/10 × 15 = 1125/150
4. Add the two like fractions:
   180/150 + 1125/150 = 180 + 1125/150 = 1305/150
5. 1305/150 simplified gives 87/10
6. So, 90/75 + 75/10 = 87/10
   In mixed form: 87/10

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