Subtract 28/70 from 27/45
27/45 - 28/70 is 1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
27/45 = 27 × 14/45 × 14 = 378/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
28/70 = 28 × 9/70 × 9 = 252/630 - Subtract the two like fractions:
378/630 - 252/630 = 378 - 252/630 = 126/630 - After reducing the fraction, the answer is 1/5
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