Add 12/40 and 48/56
12/40 + 48/56 is 81/70.
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,
48/56 = 48 × 5/56 × 5 = 240/280 - Add the two like fractions:
84/280 + 240/280 = 84 + 240/280 = 324/280 - 324/280 simplified gives 81/70
- So, 12/40 + 48/56 = 81/70
In mixed form: 111/70
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