Subtract 90/98 from 81/64
1st number: 1 17/64, 2nd number: 90/98
81/64 - 90/98 is 1089/3136.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 98 is 3136
Next, find the equivalent fraction of both fractional numbers with denominator 3136 - For the 1st fraction, since 64 × 49 = 3136,
81/64 = 81 × 49/64 × 49 = 3969/3136 - Likewise, for the 2nd fraction, since 98 × 32 = 3136,
90/98 = 90 × 32/98 × 32 = 2880/3136 - Subtract the two like fractions:
3969/3136 - 2880/3136 = 3969 - 2880/3136 = 1089/3136
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