Subtract 20/90 from 70/48
1st number: 1 22/48, 2nd number: 20/90
70/48 - 20/90 is 89/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
70/48 = 70 × 15/48 × 15 = 1050/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
20/90 = 20 × 8/90 × 8 = 160/720 - Subtract the two like fractions:
1050/720 - 160/720 = 1050 - 160/720 = 890/720 - After reducing the fraction, the answer is 89/72
- In mixed form: 117/72
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