Answer :

10/7 - 149/140 =​

First, find the least common denominator (bottom numbers)

7 and 140 =

LCM = 140

Multiply the top and bottom number od the first fraction by 20

[tex](\frac{10}{7}\times\frac{20}{20})-\frac{149}{140}[/tex][tex]\frac{200}{140}-\frac{149}{140}[/tex]

Now that both fractions have the same denominator (140) simply subtract the top numbers

[tex]\frac{(200-149)}{140}[/tex][tex]\frac{51}{140}[/tex]

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