Subtract 7/45 from 90/8
1st number: 11 2/8, 2nd number: 7/45
90/8 - 7/45 is 1997/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
90/8 = 90 × 45/8 × 45 = 4050/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
7/45 = 7 × 8/45 × 8 = 56/360 - Subtract the two like fractions:
4050/360 - 56/360 = 4050 - 56/360 = 3994/360 - After reducing the fraction, the answer is 1997/180
- In mixed form: 1117/180
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