Subtract 5/40 from 30/9, Solve 3 3/9

Subtract 5/40 from 30/9

1^st number: 3 3/9, 2^nd number: 5/40

30/9 - 5/40 is 77/24.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 9 × 40 = 360,
30/9 = 30 × 40/9 × 40 = 1200/360
Likewise, for the 2nd fraction, since 40 × 9 = 360,
5/40 = 5 × 9/40 × 9 = 45/360
Subtract the two like fractions:
1200/360 - 45/360 = 1200 - 45/360 = 1155/360
After reducing the fraction, the answer is 77/24
In mixed form: 35/24

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