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1=\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.
1=\frac{21+8}{30}
Since \frac{21}{30} and \frac{8}{30} have the same denominator, add them by adding their numerators.
1=\frac{29}{30}
Add 21 and 8 to get 29.
\frac{30}{30}=\frac{29}{30}
Convert 1 to fraction \frac{30}{30}.
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Compare \frac{30}{30} and \frac{29}{30}.
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