explain 13 13/20 + 6 3/5 + 17 3/4
⚠ 13 13/20 is read as the mixed number 13 + 13/20
⚠ 6 3/5 is read as the mixed number 6 + 3/5
Let's calculate: 13 + 1320 + 6 + 35 + 17 + 34
ⓘTo add fractions, put them over the same denominator, then add the numerators: 1320 + 35 = 13 + 4×320
ℹ13 + 6 = 19
19 + 13 + 4×320 + 17 + 34
ⓘMultiplications are done before additions and subtractions: 4×3 = 12
ℹ19 + 17 = 36
36 + 13 + 1220 + 34
ⓘThe numerator and the denominator are computed before the division: 13 + 12 = 25
36 + 2520 + 34
ℹ2520 + 34 = 25 + 3×520
36 + 25 + 3×520
ℹ3×5 = 15
36 + 25 + 1520
ℹ25 + 15 = 40
36 + 4020
We simplify the fraction: 4020 by the common factor: 20 to get the new expression: 2
ⓘWe simplify the fraction by dividing the numerator and the denominator by the number 20: 4020 = 2×201×20 = 21
36 + 2
▶Result:   38