Subtract 30/80 from 90/98
90/98 - 30/80 is 213/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 98 × 40 = 3920,
90/98 = 90 × 40/98 × 40 = 3600/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
30/80 = 30 × 49/80 × 49 = 1470/3920 - Subtract the two like fractions:
3600/3920 - 1470/3920 = 3600 - 1470/3920 = 2130/3920 - After reducing the fraction, the answer is 213/392
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