Add 12/56 and 42/72
12/56 + 42/72 is 67/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
12/56 = 12 × 9/56 × 9 = 108/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
42/72 = 42 × 7/72 × 7 = 294/504 - Add the two like fractions:
108/504 + 294/504 = 108 + 294/504 = 402/504 - 402/504 simplified gives 67/84
- So, 12/56 + 42/72 = 67/84
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