Subtract 21/42 from 98/5, Solve 19 3/5

Subtract 21/42 from 98/5

1^st number: 19 3/5, 2^nd number: 21/42

98/5 - 21/42 is 191/10.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 5 × 42 = 210,
98/5 = 98 × 42/5 × 42 = 4116/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
21/42 = 21 × 5/42 × 5 = 105/210
Subtract the two like fractions:
4116/210 - 105/210 = 4116 - 105/210 = 4011/210
After reducing the fraction, the answer is 191/10
In mixed form: 191/10

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