Add 72/28 and 90/80
1st number: 2 16/28, 2nd number: 1 10/80
72/28 + 90/80 is 207/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
72/28 = 72 × 20/28 × 20 = 1440/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560 - Add the two like fractions:
1440/560 + 630/560 = 1440 + 630/560 = 2070/560 - 2070/560 simplified gives 207/56
- So, 72/28 + 90/80 = 207/56
In mixed form: 339/56
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