Subtract 28/72 from 90/50
1st number: 1 40/50, 2nd number: 28/72
90/50 - 28/72 is 127/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 50 × 36 = 1800,
90/50 = 90 × 36/50 × 36 = 3240/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
28/72 = 28 × 25/72 × 25 = 700/1800 - Subtract the two like fractions:
3240/1800 - 700/1800 = 3240 - 700/1800 = 2540/1800 - After reducing the fraction, the answer is 127/90
- In mixed form: 137/90
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