Add 12/15 and 54/56
12/15 + 54/56 is 247/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
12/15 = 12 × 56/15 × 56 = 672/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
54/56 = 54 × 15/56 × 15 = 810/840 - Add the two like fractions:
672/840 + 810/840 = 672 + 810/840 = 1482/840 - 1482/840 simplified gives 247/140
- So, 12/15 + 54/56 = 247/140
In mixed form: 1107/140
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