Add 18/21 and 35/75
18/21 + 35/75 is 139/105.
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,
18/21 = 18 × 25/21 × 25 = 450/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
35/75 = 35 × 7/75 × 7 = 245/525 - Add the two like fractions:
450/525 + 245/525 = 450 + 245/525 = 695/525 - 695/525 simplified gives 139/105
- So, 18/21 + 35/75 = 139/105
In mixed form: 134/105
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