Add 45/75 and 30/21
1st number: 45/75, 2nd number: 1 9/21
45/75 + 30/21 is 71/35.
Steps for adding fractions
- 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 - For the 1st fraction, since 75 × 7 = 525,
45/75 = 45 × 7/75 × 7 = 315/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
30/21 = 30 × 25/21 × 25 = 750/525 - Add the two like fractions:
315/525 + 750/525 = 315 + 750/525 = 1065/525 - 1065/525 simplified gives 71/35
- So, 45/75 + 30/21 = 71/35
In mixed form: 21/35
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