Subtract 10/45 from 21/3, Solve 7 0/3

Subtract 10/45 from 21/3

1^st number: 7 0/3, 2^nd number: 10/45

21/3 - 10/45 is 61/9.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45

Next, find the equivalent fraction of both fractional numbers with denominator 45
For the 1st fraction, since 3 × 15 = 45,
21/3 = 21 × 15/3 × 15 = 315/45
Likewise, for the 2nd fraction, since 45 × 1 = 45,
10/45 = 10 × 1/45 × 1 = 10/45
Subtract the two like fractions:
315/45 - 10/45 = 315 - 10/45 = 305/45
After reducing the fraction, the answer is 61/9
In mixed form: 67/9

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