Subtract 15/72 from 90/35
1st number: 2 20/35, 2nd number: 15/72
90/35 - 15/72 is 397/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 35 × 72 = 2520,
90/35 = 90 × 72/35 × 72 = 6480/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
15/72 = 15 × 35/72 × 35 = 525/2520 - Subtract the two like fractions:
6480/2520 - 525/2520 = 6480 - 525/2520 = 5955/2520 - After reducing the fraction, the answer is 397/168
- In mixed form: 261/168
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