LCM of the denominators in the fractions 4/5 and 3/7 is

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Solution

The correct option is B 35
5 and 7 are the respective denominators in the fractions $\frac{4}{5}$ and $\frac{3}{7}$ . They are relatively prime with 1 as the common factor.

In this case, LCM of the denominators would be obtained by multiplying the two numbers.
LCM $= 5 \times 7 = 35$

35 is the required LCM of the denominators.

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Similar questions

\frac{3}{16}

\frac{7}{20}

\frac{L C M o f t h e i r n u m e r a t o r s}{H C F o f t h e i r d e n o m i n a t o r s}

\frac{H C F o f t h e i r n u m e r a t o r s}{L C M o f t h e i r d e n o m i n a t o r s}

\frac{2}{5}

\frac{6}{25}

\frac{8}{35}

L C M

\frac{2}{3} □ \frac{4}{5}

Why LCM of fractions equals to LCM(of numerators)/ HCF (of denominators)?

3 \frac{5}{8} - 1 \frac{1}{4}

3 \frac{5}{8} = \frac{29}{8}, 1 \frac{1}{4} = \frac{5}{4}

\frac{29}{8} - \frac{5}{4} = \frac{29 \times 1 - 5 \times 2}{8} = \frac{19}{8}

\frac{19}{8} = 2 \frac{5}{8}

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