Subtract 30/84 from 90/4, Solve 22 2/4

Subtract 30/84 from 90/4

1^st number: 22 2/4, 2^nd number: 30/84

90/4 - 30/84 is 155/7.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 4 × 21 = 84,
90/4 = 90 × 21/4 × 21 = 1890/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84
Subtract the two like fractions:
1890/84 - 30/84 = 1890 - 30/84 = 1860/84
After reducing the fraction, the answer is 155/7
In mixed form: 221/7

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