To add fractions, the denominators (bottom numbers) must be equal; so first convert the fractions into equivalent fractions with the same denominator. Then the numerators (top numbers) are added/subtracted and the resulting fraction simplified:
lcm(4, 3, 5) = 60
60 ÷ 4 = 15
60 ÷ 3 = 20
60 ÷ 5 = 12
3/4 = (3×15)/(4×15) = 45/60
2/3 = (2×20)/(3×20) = 40/60
1/5 = (1×12)/(5×12) = 12/60
→ 3/4 + 2/3 + 1/5 = 45/60 + 40/60 + 12/60 = (45+40+12)/60 = 97/60 = (1×60+37)/60 = 1 37/60
The answer to that would be 9/10ths
One fourth is three twelfths. So one twelfth plus three twelfths is four twelfths, which is also one third.
Seven and one twelfth
three fourths
1/6 plus 1/5 plus 1/4 plus 1/3 plus 1/2 = 1 9/20 or 1.45
The answer to that would be 9/10ths
six and three-fifths
twenty three over twenty four 23/24 :-)
One fourth is three twelfths. So one twelfth plus three twelfths is four twelfths, which is also one third.
one third plus one fifth is eight fifteenth
Seven and one twelfth
2/3 + 1/5 = 10/15 + 3/15 = 13/15
one sixteenth
74658
three fourths
1/6 plus 1/5 plus 1/4 plus 1/3 plus 1/2 = 1 9/20 or 1.45
sixtenth