Add 12/27 and 42/70
12/27 + 42/70 is 47/45.
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,
12/27 = 12 × 70/27 × 70 = 840/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
42/70 = 42 × 27/70 × 27 = 1134/1890 - Add the two like fractions:
840/1890 + 1134/1890 = 840 + 1134/1890 = 1974/1890 - 1974/1890 simplified gives 47/45
- So, 12/27 + 42/70 = 47/45
In mixed form: 12/45
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