87/21 - 73/21 = 14/21 = 2/3
Seven tens minus one ten(70-10) equals six tens(60).
Ten minus nine eights equals eight and seven eighths.
Eleven fifteenths minus ten fifteenths is equal to one fifteenth.
7/9 − 5/10 = 25/90 which reduces to 5/18
6 and 9/8
Seven tens minus one ten(70-10) equals six tens(60).
seven twelfths
negative 9 over 2
Ten minus nine eights equals eight and seven eighths.
Eleven fifteenths minus ten fifteenths is equal to one fifteenth.
7/9 − 5/10 = 25/90 which reduces to 5/18
Three of anything minus ten of the same thing leaves negative seven of them.
1 − 9/10 = 1/10
Negative three.
10 - 7 = 3
6 and 9/8
1/2 − 1/10 = 2/5