Add 30/42 and 6/72
30/42 + 6/72 is 67/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
30/42 = 30 × 12/42 × 12 = 360/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
6/72 = 6 × 7/72 × 7 = 42/504 - Add the two like fractions:
360/504 + 42/504 = 360 + 42/504 = 402/504 - 402/504 simplified gives 67/84
- So, 30/42 + 6/72 = 67/84
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