Add 75/70 and 15/80
1st number: 1 5/70, 2nd number: 15/80
75/70 + 15/80 is 141/112.
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,
75/70 = 75 × 8/70 × 8 = 600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560 - Add the two like fractions:
600/560 + 105/560 = 600 + 105/560 = 705/560 - 705/560 simplified gives 141/112
- So, 75/70 + 15/80 = 141/112
In mixed form: 129/112
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