Subtract 1/90 from 72/2
1st number: 36 0/2, 2nd number: 1/90
72/2 - 1/90 is 3239/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
72/2 = 72 × 45/2 × 45 = 3240/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
1/90 = 1 × 1/90 × 1 = 1/90 - Subtract the two like fractions:
3240/90 - 1/90 = 3240 - 1/90 = 3239/90 - In mixed form: 3589/90
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