Add 21/54 and 54/70
21/54 + 54/70 is 731/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
21/54 = 21 × 35/54 × 35 = 735/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
54/70 = 54 × 27/70 × 27 = 1458/1890 - Add the two like fractions:
735/1890 + 1458/1890 = 735 + 1458/1890 = 2193/1890 - 2193/1890 simplified gives 731/630
- So, 21/54 + 54/70 = 731/630
In mixed form: 1101/630
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