Subtract 45/30 from 90/8
1st number: 11 2/8, 2nd number: 1 15/30
90/8 - 45/30 is 39/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
90/8 = 90 × 15/8 × 15 = 1350/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
45/30 = 45 × 4/30 × 4 = 180/120 - Subtract the two like fractions:
1350/120 - 180/120 = 1350 - 180/120 = 1170/120 - After reducing the fraction, the answer is 39/4
- In mixed form: 93/4
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