Question

3 целых 2/5-2 целых 4/7+x=2 целых 1/7=

Answer 1

3ц 2/5 - 2ц 4/7 + х = 2ц 1/7
х = 2ц 1/7+2ц 4/7 - 3ц 2/5
х= 4ц5/7-3ц2/5
х=33/7-17/5
х=165/35--119/35
х=46/35=1ц 11/35