Subtract 21/72 from 70/50
1st number: 1 20/50, 2nd number: 21/72
70/50 - 21/72 is 133/120.
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,
70/50 = 70 × 36/50 × 36 = 2520/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
21/72 = 21 × 25/72 × 25 = 525/1800 - Subtract the two like fractions:
2520/1800 - 525/1800 = 2520 - 525/1800 = 1995/1800 - After reducing the fraction, the answer is 133/120
- In mixed form: 113/120
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