Add 9/42 and 45/56
9/42 + 45/56 is 57/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
9/42 = 9 × 4/42 × 4 = 36/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
45/56 = 45 × 3/56 × 3 = 135/168 - Add the two like fractions:
36/168 + 135/168 = 36 + 135/168 = 171/168 - 171/168 simplified gives 57/56
- So, 9/42 + 45/56 = 57/56
In mixed form: 11/56
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