2/9 * Х = 5/12 4/15 * у = 2/5 3/5 * Х = 6 7/8 * у = 14 3/7 * Х = 1 целая 4/5 9/10 * у = 4 целых 1/2

2/9х=5/12 х=5/12÷2/9 х=5/12×9/2 х=5/4×3/2 х=15/8 х=1 7/8 4/15у=2/5 у=2/5÷4/15 у=2/5×15/4 у=1/1×3/2 у=3/2 у=1 1/2 3/5х=6 х=6÷3/5 х=6/1÷3/5 х=6/1×5/3 х=2/1×5/1 х=10/1=10 7/8у=14 у=14÷7/8 у=14/1÷7/8 у=14/1×8/7 у=2/1×8/1 у=16/1=16 3/7х=1 4/5 х=1 4/5÷3/7 х=9/5×7/3 х=3/5×7/1 х=21/5 х=4 1/5 9/10у=4 1/2 у=4 1/2÷9/10 у=9/2×10/9 у=1/1×5/1 у=5/1 у=5