Subtract 7/70 from 25/27, Solve 25/27

Subtract 7/70 from 25/27

25/27 - 7/70 is 223/270.

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,
25/27 = 25 × 70/27 × 70 = 1750/1890
Likewise, for the 2nd fraction, since 70 × 27 = 1890,
7/70 = 7 × 27/70 × 27 = 189/1890
Subtract the two like fractions:
1750/1890 - 189/1890 = 1750 - 189/1890 = 1561/1890
After reducing the fraction, the answer is 223/270

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