Solve for J
J=\frac{29}{30}\approx 0.966666667
Assign J
J≔\frac{29}{30}
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J=\frac{21}{30}+\frac{8}{30}
Least common multiple of 10 and 15 is 30. Convert \frac{7}{10} and \frac{4}{15} to fractions with denominator 30.
J=\frac{21+8}{30}
Since \frac{21}{30} and \frac{8}{30} have the same denominator, add them by adding their numerators.
J=\frac{29}{30}
Add 21 and 8 to get 29.
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