Subtract 63/16 from 20/50, Solve 20/50

Subtract 63/16 from 20/50

1^st number: 20/50, 2^nd number: 3 15/16

20/50 - 63/16 is -283/80.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 16 is 400

Next, find the equivalent fraction of both fractional numbers with denominator 400
For the 1st fraction, since 50 × 8 = 400,
20/50 = 20 × 8/50 × 8 = 160/400
Likewise, for the 2nd fraction, since 16 × 25 = 400,
63/16 = 63 × 25/16 × 25 = 1575/400
Subtract the two like fractions:
160/400 - 1575/400 = 160 - 1575/400 = -1415/400
After reducing the fraction, the answer is -283/80

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