Subtract 21/40 from 80/45
1st number: 1 35/45, 2nd number: 21/40
80/45 - 21/40 is 451/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
80/45 = 80 × 8/45 × 8 = 640/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
21/40 = 21 × 9/40 × 9 = 189/360 - Subtract the two like fractions:
640/360 - 189/360 = 640 - 189/360 = 451/360 - In mixed form: 191/360
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