SUBTRACTING MIXED FRACTIONS
Subtract 3 5/7 from 7 7/9.
a. 4 30/63
b. 4 31/62
c. 4 31/64
d. 4 31/6
SOLUTION:
- Convert first the mixed numbers into improper fraction.
[tex]3 \frac{5}{7} = \frac{26}{7}, 7 \frac{7}{9} = \frac{70}{9} [/tex]
- Get the LCD of the denominators.
[tex] \frac{70}{9} - \frac{26}{7} = \frac{490 \: - \: 234 }{63} \\ \\ = \frac{256}{63} \: \: or \: \: 4 \frac{4}{63} [/tex]
ANSWER:
The answer is [tex]4 \frac{4}{63} [/tex]
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