Add 25/75 and 7/21
25/75 + 7/21 is 2/3.
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,
25/75 = 25 × 7/75 × 7 = 175/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
7/21 = 7 × 25/21 × 25 = 175/525 - Add the two like fractions:
175/525 + 175/525 = 175 + 175/525 = 350/525 - 350/525 simplified gives 2/3
- So, 25/75 + 7/21 = 2/3
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