Subtract 21/54 from 6/35, Solve 6/35

Subtract 21/54 from 6/35

6/35 - 21/54 is -137/630.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 54 is 1890

Next, find the equivalent fraction of both fractional numbers with denominator 1890
For the 1st fraction, since 35 × 54 = 1890,
6/35 = 6 × 54/35 × 54 = 324/1890
Likewise, for the 2nd fraction, since 54 × 35 = 1890,
21/54 = 21 × 35/54 × 35 = 735/1890
Subtract the two like fractions:
324/1890 - 735/1890 = 324 - 735/1890 = -411/1890
After reducing the fraction, the answer is -137/630

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