Помогите решить,эти два номера пожалуйста 506,507 умаляю,пожалуйста!

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1) -7.3 + (-8.1) = - 15.42) -6.5 + 3.2 = - 3.33) 15.7 + (-23.5) = -7.84) -6.91+12.4 = 5.495) 46.56 + (-58.17) = - 11.616) -91.3 + (- 3.65) = - 94.95=======================================1) -1 2/3 + 1/3 = -1 1/32) -5/7 + 1 = - 5/7 + 7/7 = 2/73)  -5 7/9 +0 = -5 7/94) 8 1/7 + (-3) = 5 1/75) - 1/4 + (-1/2) = - 1/4 + (-2/4) = - 3/46) - 3 4/5 + 2 2/3 = - 3 12/15 + 2 10/15 = - 1 2/15