Subtract 45/81 from 49/20
1st number: 2 9/20, 2nd number: 45/81
49/20 - 45/81 is 341/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 20 × 81 = 1620,
49/20 = 49 × 81/20 × 81 = 3969/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
45/81 = 45 × 20/81 × 20 = 900/1620 - Subtract the two like fractions:
3969/1620 - 900/1620 = 3969 - 900/1620 = 3069/1620 - After reducing the fraction, the answer is 341/180
- In mixed form: 1161/180
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