Subtract 15/54 from 63/70
63/70 - 15/54 is 28/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
63/70 = 63 × 27/70 × 27 = 1701/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
15/54 = 15 × 35/54 × 35 = 525/1890 - Subtract the two like fractions:
1701/1890 - 525/1890 = 1701 - 525/1890 = 1176/1890 - After reducing the fraction, the answer is 28/45
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