Add 1/21 and 45/75
1/21 + 45/75 is 68/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
1/21 = 1 × 25/21 × 25 = 25/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
45/75 = 45 × 7/75 × 7 = 315/525 - Add the two like fractions:
25/525 + 315/525 = 25 + 315/525 = 340/525 - 340/525 simplified gives 68/105
- So, 1/21 + 45/75 = 68/105
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