Subtract 45/27 from 60/70
1st number: 60/70, 2nd number: 1 18/27
60/70 - 45/27 is -17/21.
Steps for subtracting 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,
60/70 = 60 × 27/70 × 27 = 1620/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
45/27 = 45 × 70/27 × 70 = 3150/1890 - Subtract the two like fractions:
1620/1890 - 3150/1890 = 1620 - 3150/1890 = -1530/1890 - After reducing the fraction, the answer is -17/21
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