Add 40/42 and 9/54
40/42 + 9/54 is 47/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
40/42 = 40 × 9/42 × 9 = 360/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
9/54 = 9 × 7/54 × 7 = 63/378 - Add the two like fractions:
360/378 + 63/378 = 360 + 63/378 = 423/378 - 423/378 simplified gives 47/42
- So, 40/42 + 9/54 = 47/42
In mixed form: 15/42
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