Respuesta :

The algebraic formula for adding fractions is:

ab+cd=ad+bcbdab+cd=ad+bcbd

Example steps:

26+14=(2×4)+(6×1)6×426+14=(2×4)+(6×1)6×4=1424=712=1424=712Subtracting Fractions

The formula for subtracting fractions is:

abcd=ad−bcbdabcd=ad−bcbd

Example steps:

2614=(2×4)−(6×1)6×42614=(2×4)−(6×1)6×4=224=112=224=112Multiplying Fractions

The formula for multiplying fractions is:

ab×cd=acbdab×cd=acbd

Example steps:

26×14=2×16×426×14=2×16×4=224=112=224=112Dividing Fractions

The formula for dividing fractions is:

ab÷cd=adbcab÷cd=adbc

Example steps:

26÷14=2×46×126÷14=2×46×1=86=43=113=86=43=113
Just turn the second fraction upside down
-1/5 * 4/7
-4/35