Solutions by everydaycalculation.com
1st number: 10/15, 2nd number: 1 1/4
1015 - 54 is -712.
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Related: 20/15-5/4 10/15-10/4 10/30-5/4 10/15-5/8 30/15-5/4 10/15-15/4 10/45-5/4 10/15-5/12 50/15-5/4 10/15-25/4 10/75-5/4 10/15-5/20 70/15-5/4 10/15-35/4 10/15-5/28
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