ПОМОГИТЕ ПОЖАЛУЙСТА! найдите сумму а) 3/16+5/8 б) 11/16+3/8 в) 11/18+1/6 г) 1/18+5/6

Решение дробей:а).3/16 + 5/8 = 3 * 8/16 * 8 + 5 * 16/8 * 16 = 24/128 + 80/128 = 24 + 80/128 = 104/128 = 13 * 8/16 * 8 = 13/16;б).11/16 + 3/8 = 11 * 8/16 * 8 + 3 * 16/8 * 16 = 88/128 + 48/128 = 88 + 48/128 = 136/128 = 17 * 8/16 * 8 = 17/16 = 1 + 1 * 16/16 = 1 целая 1/16;в).11/18 + 1/6 = 11 * 6/18 * 6 + 1 * 18/6 * 18 = 66/108 + 18/108 = 66 + 18/108 = 84/108 = 7 * 12/9 * 12 = 7/9;г).1/18 + 5/6 = 1 * 16/18 * 16 + 5 * 18/6 * 18 = 6/108 + 90/108 = 6 + 90/108 = 96/108 = 8 * 12/9 * 12 = 8/9;