Subtract 2/5 from 45/21, Solve 2 3/21

Subtract 2/5 from 45/21

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

45/21 - 2/5 is 61/35.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 21 × 5 = 105,
45/21 = 45 × 5/21 × 5 = 225/105
Likewise, for the 2nd fraction, since 5 × 21 = 105,
2/5 = 2 × 21/5 × 21 = 42/105
Subtract the two like fractions:
225/105 - 42/105 = 225 - 42/105 = 183/105
After reducing the fraction, the answer is 61/35
In mixed form: 126/35

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