Add 90/70 and 40/48
1st number: 1 20/70, 2nd number: 40/48
90/70 + 40/48 is 89/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 48 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 70 × 24 = 1680,
90/70 = 90 × 24/70 × 24 = 2160/1680 - Likewise, for the 2nd fraction, since 48 × 35 = 1680,
40/48 = 40 × 35/48 × 35 = 1400/1680 - Add the two like fractions:
2160/1680 + 1400/1680 = 2160 + 1400/1680 = 3560/1680 - 3560/1680 simplified gives 89/42
- So, 90/70 + 40/48 = 89/42
In mixed form: 25/42
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