Add 70/45 and 72/80
1st number: 1 25/45, 2nd number: 72/80
70/45 + 72/80 is 221/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
70/45 = 70 × 16/45 × 16 = 1120/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
72/80 = 72 × 9/80 × 9 = 648/720 - Add the two like fractions:
1120/720 + 648/720 = 1120 + 648/720 = 1768/720 - 1768/720 simplified gives 221/90
- So, 70/45 + 72/80 = 221/90
In mixed form: 241/90
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Related: 70/90+72/80