Add 15/70 and 72/27
1st number: 15/70, 2nd number: 2 18/27
15/70 + 72/27 is 121/42.
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,
15/70 = 15 × 27/70 × 27 = 405/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
72/27 = 72 × 70/27 × 70 = 5040/1890 - Add the two like fractions:
405/1890 + 5040/1890 = 405 + 5040/1890 = 5445/1890 - 5445/1890 simplified gives 121/42
- So, 15/70 + 72/27 = 121/42
In mixed form: 237/42
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