Subtract 7/20 from 80/45
1st number: 1 35/45, 2nd number: 7/20
80/45 - 7/20 is 257/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
80/45 = 80 × 4/45 × 4 = 320/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
7/20 = 7 × 9/20 × 9 = 63/180 - Subtract the two like fractions:
320/180 - 63/180 = 320 - 63/180 = 257/180 - In mixed form: 177/180
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