Add 40/42 and 56/72
40/42 + 56/72 is 109/63.
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,
40/42 = 40 × 12/42 × 12 = 480/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
56/72 = 56 × 7/72 × 7 = 392/504 - Add the two like fractions:
480/504 + 392/504 = 480 + 392/504 = 872/504 - 872/504 simplified gives 109/63
- So, 40/42 + 56/72 = 109/63
In mixed form: 146/63
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