Add 12/72 and 18/63
12/72 + 18/63 is 19/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
12/72 = 12 × 7/72 × 7 = 84/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
18/63 = 18 × 8/63 × 8 = 144/504 - Add the two like fractions:
84/504 + 144/504 = 84 + 144/504 = 228/504 - 228/504 simplified gives 19/42
- So, 12/72 + 18/63 = 19/42
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