Add 72/80 and 9/56
72/80 + 9/56 is 297/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 56 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
72/80 = 72 × 7/80 × 7 = 504/560 - Likewise, for the 2nd fraction, since 56 × 10 = 560,
9/56 = 9 × 10/56 × 10 = 90/560 - Add the two like fractions:
504/560 + 90/560 = 504 + 90/560 = 594/560 - 594/560 simplified gives 297/280
- So, 72/80 + 9/56 = 297/280
In mixed form: 117/280
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