Add 18/75 and 42/63
18/75 + 42/63 is 68/75.
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,
18/75 = 18 × 21/75 × 21 = 378/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
42/63 = 42 × 25/63 × 25 = 1050/1575 - Add the two like fractions:
378/1575 + 1050/1575 = 378 + 1050/1575 = 1428/1575 - 1428/1575 simplified gives 68/75
- So, 18/75 + 42/63 = 68/75
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