Add 21/27 and 35/70
21/27 + 35/70 is 23/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 27 × 70 = 1890,
21/27 = 21 × 70/27 × 70 = 1470/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
35/70 = 35 × 27/70 × 27 = 945/1890 - Add the two like fractions:
1470/1890 + 945/1890 = 1470 + 945/1890 = 2415/1890 - 2415/1890 simplified gives 23/18
- So, 21/27 + 35/70 = 23/18
In mixed form: 15/18
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