7/15+7/12

Let's calculate:

\frac{7}{15} + \frac{7}{12}

ⓘ Add fractions by using a common denominator and then adding their numerators. We choose

60

, the least common multiple of

15

and

12

. Multiplying the numerator and the denominator by the same number does not change the fraction:

\frac{7}{15} + \frac{7}{12}

\frac{7 \times 4}{15 \times 4} + \frac{7 \times 5}{12 \times 5}

\frac{7 \times 4 + 7 \times 5}{15 \times 4}

\frac{7 \times 4 + 7 \times 5}{15 \times 4}

ⓘ Perform multiplications before additions and subtractions:

7 \times 4

28

7 \times 5

35

ⅰ

15 \times 4

(10 + 5) \times 4

10 \times 4 + 5 \times 4

40 + 20

60

\frac{28 + 35}{60}

ⓘ The numerator and the denominator are computed before the division:

28 + 35

63

\frac{63}{60}

ⓘ Simplify the fraction by dividing the numerator and the denominator by

3

, their greatest common divisor:

\frac{63}{60}

\frac{21 \times 3}{20 \times 3}

\frac{21}{20}

▶Result:

\frac{21}{20}

The numeric value of:

\frac{21}{20}

is:

▷

1.05

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