Add 84/70 and 30/80
1st number: 1 14/70, 2nd number: 30/80
84/70 + 30/80 is 63/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
84/70 = 84 × 8/70 × 8 = 672/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
30/80 = 30 × 7/80 × 7 = 210/560 - Add the two like fractions:
672/560 + 210/560 = 672 + 210/560 = 882/560 - 882/560 simplified gives 63/40
- So, 84/70 + 30/80 = 63/40
In mixed form: 123/40
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