Add 45/84 and 54/72
45/84 + 54/72 is 9/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
45/84 = 45 × 6/84 × 6 = 270/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
54/72 = 54 × 7/72 × 7 = 378/504 - Add the two like fractions:
270/504 + 378/504 = 270 + 378/504 = 648/504 - 648/504 simplified gives 9/7
- So, 45/84 + 54/72 = 9/7
In mixed form: 12/7
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Related: 90/84+54/72