Subtract 1/50 from 70/42, Solve 1 28/42

Subtract 1/50 from 70/42

1^st number: 1 28/42, 2^nd number: 1/50

70/42 - 1/50 is 247/150.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 50 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 42 × 25 = 1050,
70/42 = 70 × 25/42 × 25 = 1750/1050
Likewise, for the 2nd fraction, since 50 × 21 = 1050,
1/50 = 1 × 21/50 × 21 = 21/1050
Subtract the two like fractions:
1750/1050 - 21/1050 = 1750 - 21/1050 = 1729/1050
After reducing the fraction, the answer is 247/150
In mixed form: 197/150

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