Add 8/72 and 42/84
8/72 + 42/84 is 11/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 84 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
8/72 = 8 × 7/72 × 7 = 56/504 - Likewise, for the 2nd fraction, since 84 × 6 = 504,
42/84 = 42 × 6/84 × 6 = 252/504 - Add the two like fractions:
56/504 + 252/504 = 56 + 252/504 = 308/504 - 308/504 simplified gives 11/18
- So, 8/72 + 42/84 = 11/18
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