Subtract 64/90 from 63/4
1st number: 15 3/4, 2nd number: 64/90
63/4 - 64/90 is 2707/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
63/4 = 63 × 45/4 × 45 = 2835/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
64/90 = 64 × 2/90 × 2 = 128/180 - Subtract the two like fractions:
2835/180 - 128/180 = 2835 - 128/180 = 2707/180 - In mixed form: 157/180
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