помогите решить пример 3 1/8 + 4 3/20 - 1 5/48 - 5 2/5

3 1/8 + 4 3/20 - 1 5/48 - 5 2/5 = ( 3 5/40 + 4 6/40 - 5 16/40 ) - 1 5/48 = ( 7 11/40 - 5 16/40 ) - 1 5/48 = ( 6 51/40 - 5 16/40 ) - 1 5/48 = 1 35/40 - 1 5/48 = 1 7/8 - 1 5/48 = 1 42/48 - 1 5/48 = 37/48 Ответ 37/48

3 1/8+4 3/20-1 5/48-5 2/5=3 6/48-1 5/48+4 3/20-5 8/20=2 1/48-1 5/20=2 5/240-1 60/240=185/240=37/48