1) 3/5 + 2/3 =... - Universityku

2) 2 1/4 + 3 2/6 =…

3) 2/4 + 5 1/2 =..

4) 3 1/3 + 2 1/2 + 3/4 = …

5) 1/3 + 2/5 + 4/6=..

tolong bantu jawab ya kak pake cara

maksih.

1) 3/5 + 2/3 =…

MathGia menjawab;

1 )

$frac{3}{5} + frac{2}{3} = frac{9}{15} + frac{10}{15} = frac{9 : + : 10}{15} = frac{19}{15} =1 frac{4}{15}$

2 )

$2 frac{1}{4} + 3 frac{2}{6} = frac{8 : + : 1}{4} + frac{ 3 : times : 6 : + 2}{6} \ \ = frac{9}{4} + frac{3 : times : 6 : + : 2}{6} = frac{9}{4} + frac{20}{6} = frac{27}{12} + frac{40}{12} \ \ = frac{27 : + : 40}{12} = frac{67}{12} = 5 frac{7}{12}$

3 )

$frac { 2 } { 4 } + 5 frac { 1 } { 2 } = frac{1}{2}+frac{5times 2+1}{2} =frac{1}{2}+frac{10+1}{2} \ \ = frac{1}{2}+frac{11}{2} = frac{1+11}{2} = frac{12}{2} = 6$

4 )

$3 frac { 1 } { 3 } + 2 frac { 1 } { 2 } + frac { 3 } { 4 } = frac{9+1}{3}+frac{2times 2+1}{2}+frac{3}{4} \ \ = frac{10}{3}+frac{4+1}{2}+frac{3}{4} = frac{10}{3}+frac{5}{2}+frac{3}{4} \ \ = frac{20}{6}+frac{15}{6}+frac{3}{4} = frac{20+15}{6}+frac{3}{4} \ \ = frac{35}{6}+frac{3}{4} = frac{70}{12}+frac{9}{12} = frac{70+9}{12} \ \ = frac{79}{12} = 6 frac{7}{12}$

5 )

$frac { 1 } { 3 } + frac { 2 } { 5 } + frac { 4 } { 6 } = frac{5}{15}+frac{6}{15}+frac{4}{6} = frac{5+6}{15}+frac{4}{6} \ \ = frac{11}{15}+frac{4}{6} = frac{11}{15}+frac{2}{3} = frac{11}{15}+frac{10}{15} \ \ = frac{11+10}{15} = frac{21}{15} = frac{7}{5} = 1 frac{2}{5}$