Subtract 2/30 from 54/21, Solve 2 12/21

Subtract 2/30 from 54/21

1^st number: 2 12/21, 2^nd number: 2/30

54/21 - 2/30 is 263/105.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
54/21 = 54 × 10/21 × 10 = 540/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
2/30 = 2 × 7/30 × 7 = 14/210
Subtract the two like fractions:
540/210 - 14/210 = 540 - 14/210 = 526/210
After reducing the fraction, the answer is 263/105
In mixed form: 253/105

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