Add 72/70 and 4/80
1st number: 1 2/70, 2nd number: 4/80
72/70 + 4/80 is 151/140.
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,
72/70 = 72 × 8/70 × 8 = 576/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
4/80 = 4 × 7/80 × 7 = 28/560 - Add the two like fractions:
576/560 + 28/560 = 576 + 28/560 = 604/560 - 604/560 simplified gives 151/140
- So, 72/70 + 4/80 = 151/140
In mixed form: 111/140
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