Add 12/40 and 54/56
12/40 + 54/56 is 177/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
54/56 = 54 × 5/56 × 5 = 270/280 - Add the two like fractions:
84/280 + 270/280 = 84 + 270/280 = 354/280 - 354/280 simplified gives 177/140
- So, 12/40 + 54/56 = 177/140
In mixed form: 137/140
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