Add 40/72 and 70/84
40/72 + 70/84 is 25/18.
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,
40/72 = 40 × 7/72 × 7 = 280/504 - Likewise, for the 2nd fraction, since 84 × 6 = 504,
70/84 = 70 × 6/84 × 6 = 420/504 - Add the two like fractions:
280/504 + 420/504 = 280 + 420/504 = 700/504 - 700/504 simplified gives 25/18
- So, 40/72 + 70/84 = 25/18
In mixed form: 17/18
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