Subtract 5/50 from 30/21, Solve 1 9/21

Subtract 5/50 from 30/21

1^st number: 1 9/21, 2^nd number: 5/50

30/21 - 5/50 is 93/70.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 21 × 50 = 1050,
30/21 = 30 × 50/21 × 50 = 1500/1050
Likewise, for the 2nd fraction, since 50 × 21 = 1050,
5/50 = 5 × 21/50 × 21 = 105/1050
Subtract the two like fractions:
1500/1050 - 105/1050 = 1500 - 105/1050 = 1395/1050
After reducing the fraction, the answer is 93/70
In mixed form: 123/70

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