Add 18/7 and 21/80
1st number: 2 4/7, 2nd number: 21/80
18/7 + 21/80 is 1587/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
18/7 = 18 × 80/7 × 80 = 1440/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
21/80 = 21 × 7/80 × 7 = 147/560 - Add the two like fractions:
1440/560 + 147/560 = 1440 + 147/560 = 1587/560 - So, 18/7 + 21/80 = 1587/560
In mixed form: 2467/560
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