7/13×6/29＋6/13×22/29
＝（6/13＋1/13）×6/29＋6/13×22/29
＝6/13×（6/29＋22/29）＋1/13×6/29
＝6/13×（1－1/29）＋1/13×6/29
＝6/13×1－6/13×1/29＋（1/13×6）×（6/29÷6）
＝6/13