Add 21/75 and 18/63
21/75 + 18/63 is 99/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 75 × 21 = 1575,
21/75 = 21 × 21/75 × 21 = 441/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
18/63 = 18 × 25/63 × 25 = 450/1575 - Add the two like fractions:
441/1575 + 450/1575 = 441 + 450/1575 = 891/1575 - 891/1575 simplified gives 99/175
- So, 21/75 + 18/63 = 99/175
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