פתרו את התרגילים הבאים:
2 / 7 + 6 / 7 = {\displaystyle 2/7+6/7=} 7 / 2 + 4 / 2 = {\displaystyle 7/2+4/2=} 3 / 5 + 6 / 5 = {\displaystyle 3/5+6/5=} 2 / 3 + 8 / 3 = {\displaystyle 2/3+8/3=} 6 / 8 + 5 / 8 = {\displaystyle 6/8+5/8=} 9 / 5 − 3 / 5 = {\displaystyle 9/5-3/5=} 7 / 4 − 9 / 4 = {\displaystyle 7/4-9/4=} 7 / 9 − 5 / 9 = {\displaystyle 7/9-5/9=} 7 / 6 − 5 / 6 = {\displaystyle 7/6-5/6=} 7 / 2 − 8 / 2 = {\displaystyle 7/2-8/2=}
