explain 13/20+3/5
Let's evaluate: 1320 + 35
ⓘTo add fractions, put them over the same denominator, then add the numerators
13 + 3×420
ⓘMultiplications are done before additions and subtractions: 3×4 = 12
13 + 1220
ⓘThe numerator and the denominator are computed before the division: 13 + 12 = 25
2520
ⓘWe simplify the fraction by dividing the numerator and the denominator by the number 5: 2520 = 5×54×5 = 54
▶Result:   54
The approximate value of: 54 is:
▷ 1.25