estimate 4 1/9+ 7 9/10+ 2 1/7 + 5 7/8=
first change them all to "improper" fractions
37/9 + 79/10+15/7 + 47/8
The common denominator is 2520
convert each to that , then add them up
I got 20 73/2520
37/9 + 79/10+15/7 + 47/8
The common denominator is 2520
convert each to that , then add them up
I got 20 73/2520