Answers

Add 90/75 and 10/21

1^st number: 1 15/75, 2^nd number: 10/21

90/75 + 10/21 is 176/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 21 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 75 × 7 = 525,
   90/75 = 90 × 7/75 × 7 = 630/525
3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
   10/21 = 10 × 25/21 × 25 = 250/525
4. Add the two like fractions:
   630/525 + 250/525 = 630 + 250/525 = 880/525
5. 880/525 simplified gives 176/105
6. So, 90/75 + 10/21 = 176/105
   In mixed form: 171/105

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