Add 45/70 and 21/27
45/70 + 21/27 is 179/126.
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,
45/70 = 45 × 27/70 × 27 = 1215/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
21/27 = 21 × 70/27 × 70 = 1470/1890 - Add the two like fractions:
1215/1890 + 1470/1890 = 1215 + 1470/1890 = 2685/1890 - 2685/1890 simplified gives 179/126
- So, 45/70 + 21/27 = 179/126
In mixed form: 153/126
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