Add 54/70 and 40/80
54/70 + 40/80 is 89/70.
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,
54/70 = 54 × 8/70 × 8 = 432/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
40/80 = 40 × 7/80 × 7 = 280/560 - Add the two like fractions:
432/560 + 280/560 = 432 + 280/560 = 712/560 - 712/560 simplified gives 89/70
- So, 54/70 + 40/80 = 89/70
In mixed form: 119/70
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