Subtract 9/49 from 30/10, Solve 3 0/10

Subtract 9/49 from 30/10

1^st number: 3 0/10, 2^nd number: 9/49

30/10 - 9/49 is 138/49.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 49 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 10 × 49 = 490,
30/10 = 30 × 49/10 × 49 = 1470/490
Likewise, for the 2nd fraction, since 49 × 10 = 490,
9/49 = 9 × 10/49 × 10 = 90/490
Subtract the two like fractions:
1470/490 - 90/490 = 1470 - 90/490 = 1380/490
After reducing the fraction, the answer is 138/49
In mixed form: 240/49

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