Add 7/8 and 27/42
7/8 + 27/42 is 85/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
7/8 = 7 × 21/8 × 21 = 147/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
27/42 = 27 × 4/42 × 4 = 108/168 - Add the two like fractions:
147/168 + 108/168 = 147 + 108/168 = 255/168 - 255/168 simplified gives 85/56
- So, 7/8 + 27/42 = 85/56
In mixed form: 129/56
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