Subtract 9/42 from 63/10, Solve 6 3/10

Subtract 9/42 from 63/10

1^st number: 6 3/10, 2^nd number: 9/42

63/10 - 9/42 is 213/35.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
63/10 = 63 × 21/10 × 21 = 1323/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
9/42 = 9 × 5/42 × 5 = 45/210
Subtract the two like fractions:
1323/210 - 45/210 = 1323 - 45/210 = 1278/210
After reducing the fraction, the answer is 213/35
In mixed form: 63/35

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