explain 1 4/5 + 17 3/20
⚠ 1 4/5 is read as the mixed number 1 + 4/5
⚠ 17 3/20 is read as the mixed number 17 + 3/20
Let's evaluate: 1 + 45 + 17 + 320
ⓘTo add fractions, put them over the same denominator, then add the numerators: 45 + 320 = 4×4 + 320
ℹ1 + 17 = 18
18 + 4×4 + 320
ⓘMultiplications are done before additions and subtractions: 4×4 = 16
18 + 16 + 320
ⓘThe numerator and the denominator are computed before the division: 16 + 3 = 19
18 + 1920
▶Result:   18 1920
The approximate value of: 18 + 1920 is:
18 + 0.95
▷ 18.95