Simplify expression and find its value: 1)-2.8+ x +5.36+ (-7.2) + at + (-7.36), if x =-13, at =54 2) m+ (-2tselykh4/9) +8tselykh13/24+n+ (-3tselykh2/9)+ (-4tselykh5/24) if m=-3tselykh5/6, n=-2tselykh11/12 HELP PZh

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Problem - what common multiple for 12 and 7. to lead to a uniform denominator of fraction in brackets or then so - 3 (whole) 3/4: (2 (whole) 4/7−1 (whole) 1/12) = 15/4:18/7 - 15/4:13/12 I think so
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Answer add