# 2Multiple choice37+24=\frac37+\frac24=73+42=2628\frac{26}{28}28261328\frac{13}{28}28132128\frac{21}{28}28211528\frac{15}{28}2815
# 3Multiple choice12+23=\frac12+\frac23=21+32=26\frac266236\frac366356\frac566546\frac4664