Subtract 49/42 from 90/10
1st number: 9 0/10, 2nd number: 1 7/42
90/10 - 49/42 is 47/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
90/10 = 90 × 21/10 × 21 = 1890/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
49/42 = 49 × 5/42 × 5 = 245/210 - Subtract the two like fractions:
1890/210 - 245/210 = 1890 - 245/210 = 1645/210 - After reducing the fraction, the answer is 47/6
- In mixed form: 75/6
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