Add 18/70 and 21/27
18/70 + 21/27 is 326/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
18/70 = 18 × 27/70 × 27 = 486/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
21/27 = 21 × 70/27 × 70 = 1470/1890 - Add the two like fractions:
486/1890 + 1470/1890 = 486 + 1470/1890 = 1956/1890 - 1956/1890 simplified gives 326/315
- So, 18/70 + 21/27 = 326/315
In mixed form: 111/315
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