Solutions by everydaycalculation.com
1427 - 89 is -1027.
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Related: 28/27-8/9 14/27-16/9 14/54-8/9 14/27-8/18 42/27-8/9 14/27-24/9 14/81-8/9 14/27-8/27 70/27-8/9 14/27-40/9 14/27-8/45 98/27-8/9 14/27-56/9 14/27-8/63
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